Highwall Pumps

The Highwall Pump is designed to have the main frame / power pack situated on top
of the highwall edge, with the wet-end lowered over the pit wall and into the water
accumulation on the pit floor.

The advantages of this pump format over conventional pit type pumps are:

Quick mobilization and demobilization with minimum labour requirements.
The pump delivery hose is positioned in place with the wet-end.
The bulk of the pump unit remains clear of mining operations.
Eliminates the need for Pump Crew to work in the pit near the Highwall.
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering the operations.

By incorporating a second (booster) pump unit to the Highwall Pump, performance is improved to 100L/sec @ 200m head TDH. The booster pump is hard plumbed into the outlet of the primary pump, allowing for simple and efficient transferring of water at high head.

By utilizing a single pump unit to lift to 200m, operating of a single engine, all complexities of setting up staging pumps, including manoeuvring of a second unit, connecting pipe work, balancing performance, and monitoring both units is eliminated.

HW9000 Booster

This unit is designed to have the main frame / power pack situated adjacent to the highwall edge, with the wet-end lowered over the pit wall and into the water accumulation on the pit floor. The advantages of this pump format over conventional pit type pumps are:

Quick mobilisation and demobilisation with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
The unit is clear of muddy conditions, and easily accessed for service
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering operations

By incorporating a second (booster) pump unit to the Highwall Pump, performance is improved to 200L/sec @ 200m head TDH. The booster pump is hard plumbed into the outlet of the primary pump, allowing for simple and efficient transferring of water at high head.

By utilising a single pump unit to lift to 200m, operating of a single engine, all complexities of setting up staging pumps, including manoeuvring of a second unit, connecting pipe work, balancing performance, and monitoring both units is eliminated.

Specifications

Water Pump Primary

Pump	Hyd Driven – Hard Metal (28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} chrome) Slurry Pump
Suction	Fabricated screened suction – galvanized – footvalve not fitted
Drive	355cc fixed displacement axial piston motor
Speed	Max 1800 R/M
Arrangement	Motor drives pump shaft through a coupling supported by taperedroller bearings in a sealed housing. Bearings are lubed by case oil. Mechanical seal prevents leakage.
Pump Performance	200 L/s @ 100m head TDH unworn pump, clean water @ 1700rpm pump speed.
Pump Curve	Legra 9000 Curve H96-200

Water Pump Booster

Pump	Hyd Driven – Hard Metal (28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} chrome) Slurry Pump
Suction	10” drop pipe from reel
Drive	355cc fixed displacement axial piston motor
Speed	Max 1800 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings are lubed by case oil. Mechanical seal prevents leakage.
Pump Performance	200 L/s @ 100m head TDH unworn pump, clean water @ 1700rpm pump speed

Wetend Positioning Support

Wheels	2 x 750 x 16” wheels fitted to 1550mm x 65mm SHS axle are mounted across the wet-end, and assist in positioning the wet-end during lifting or lowering.
Support bracket	Hydraulically (ram) operated support constructed from RHS and Flat, acts as support for the wet-end during travelling, and hose positioning during lowering.

Water Conduit

Length / Type	120m of 250 O.D. Poly standard supply.
Hydraulic Hoses	2" High pressure - Multi Spiral - pressure hose to motor drive. 2" Medium pressure - Double Braid - hose return line.

Hose Reel

Size	3625 dia drum. 4500 dia rim. Capacity to 120m of 250 OD Poly.
Construction	6-150x50x4 R.H.S spokes each side welded to hub flange and rim. 5mm M.S. plate drum. 35x35x2.5 HT SHS rims.
Reel Method of Support	Hydraulic Gland and Water Discharge Gland
Water Discharge	300 NB Table E flange 300mm from ground level. 40NB Ball valve fitted.

Main Frame Type

Heavy skid base – fully weld fabricated unit construction comprised of UB side runners (with wear plate). Heavy R.H.S. cross members, supporting the R.H.S. reel mounting frame. Heavy front tube with push pads, engine mounting, engine canopy, front bars for engine protection, fuel tank mountings, oil reservoir mountings, safety mesh mountings, and tow chain.

Dimension	Overall – 16.335m x 2.55m x 5.2m High
Weight	Approx 20 Tonne
Skid Runners	360UB56
Wear Plate	20mm Bisalloy 500 - 250mm wide
Cross Members	250x150x6 R.H.S
Reel Frame Uprights	2-250x150x6 & 2 150x150x6mm
Reel Frame	200x100x6 R.H.S
Extension Beams	75x75x4 R.H.S & 127 x 75 x 4 R.H.S.
Extension Bracing	65x65x3 B.H.S and 50x50x3 S.H.S AS1163 C450LO Duragal
Push Pads	250x150x9 R.H.S capped w/-20 ms plate
Engine Mounting	150x100x12 Angle Iron
Engine Canopy	Formed 3mm flat mild steel
Engine Protection	200.N.B. sched 40 pipe mounted on 360 U.B. uprights
Towing Chains	2 of 3.4m long of 20mm Hercalory with 260x140x38 tow-ring link (inside dimension). Attached front end only.
Hose Roller Guide System	6 Shaped roller, bearing mounted in two 12mm MS plate chain driven from four hydraulic motors, in series with the reel motor.

Hydraulic System

Hydraulic Pump	355cc pressure comp flow control piston pump. Flex coupled to engine flywheel
Operating Speed	1800 R/M
Flow at Duty	639 L/M
Max Pressure Rating	4060 P.S.I. (280 bar)
Operating Pressure	3625 P.S.I. (250 bar)
Main Relief Valve	1" high pressure spike relief - catridge type
Twin Port Rotating Gland	Legra type HD for 1½" fittings - H25-000
Auxiliary Control Valve	4 Bank load sense on reel, slew, and tilt and pump support
Reel Drive	Hydraulic motor driving via a 30:1 reduction box & 5:1 x 2” chain reduction
Hose Drive Motor	4 of geroler hydraulic motors
Load Check Valve	Double acting overcentre valves and hydraulic brake coupled to the reel motor
High Pressure Hose System	2" dia. multi spiral high pressure
Return Line	2" dia. double braid low pressure.
Hoses-Auxiliary System	½" or 5/8" dia. Double braid medium pressure
Reservoir	800Lts mild steel fabricated, fitted with oil outlet, oil return, level temperature sight glass, high and low level oil protection, drain outlet. Sand blasted internally.
Auxiliary Hyd Reservoir	100Lts Auxiliary tank fitted to main frame, pumped into main reservoir via the hydraulic filters, and incorporating an electrically operated diaphragm pump. Used for top up of main reservoir.
Return Line Filter	2 of 1½" dual element cartridge type. Watchdog pressure gauge fitted, and shuts down engine should elements become clogged.
Oil	Mineral Oil of ISO viscosity grade 22

Power Unit

Engine	C27 Cat. Turbo charged, after cooled V12 cyl.
Electrical/Watchdog	24V Electric’s, 2 work lights fitted, battery isolator fitted. Engine will be monitored by OEM supplied engine management system all other perameters will be monitored by PLC controlled board with digital fault display.
Fuel Cell	3000Lts capacity with Wiggins fittings. Weld fabricated mild steel mounted on water discharge side of frame. Drain plug fitted. Blasted internally.
Fuel Lines	12mm hydraulic hose on supply line. 12mm hydraulic hose return line.

Painting

All frame work blasted to A.S. class 2½, primed and painted Interfine 629 White.

Functions

Engine at 1000RPM to 1200 RPM	Auxiliary control valve functions. 4 functions - Wet-end lift/ lower Roller Plate Slew for aligning the hose to reel during reclaim Roller Plate traverse for assisting hose and wet-end entry to pit Wet-End Support Bracket supports wet-end and guides hose on initial wall contact
Engine up to 1800 RPM	Operation of pump functions. Booster Pump speed is controlled with PLC. PLC maintains speed of booster pump to ensure a set pressure is maintained at booster pump suction.

The foregoing specification is correct at time of publication however, LEGRA reserve the right
to amend the specification as required in keeping with market development.

HW9000

Quick mobilization and demobilization with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
The unit is clear of muddy conditions, and easily accessed for service
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering operations

Specifications

Water Pump

Pump	Hyd Driven – Hard Metal (28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} chrome) Slurry Pump
Suction	Fabricated screened suction – galvanized – footvalve not fitted
Drive	355cc fixed displacement axial piston motor
Speed	Max 1800 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings are lubed by case oil. Mechanical seal prevents leakage.
Pump Performance	200 L/s @ 100m head TDH unworn pump, clean water @ 1700rpm pump speed.
Pump Curve	GIW Curve E 4D-92

Wetend Positioning Support

Wheels	2 x 750 x 16” wheels fitted to 1550mm x 65mm SHS axle are mounted across the wet-end, and assist in positioning the wet-end during lifting or lowering.
Support bracket	Hydraulically (ram) operated support constructed from RHS and Flat, acts as support for the wet-end during travelling, and hose positioning during lowering.

Water Conduit

Length / Type	120m of 250 O.D. Poly standard supply.
Hydraulic Hoses	2" High pressure - Multi Spiral - pressure hose to motor drive. 2" Medium pressure - Double Braid - hose return line.

Hose Reel

Size	3625 dia drum. 4500 dia rim. Capacity to 120m of 250 OD Poly.
Construction	6-150x50x4 R.H.S spokes each side welded to hub flange and rim. 5mm M.S. plate drum. 35x35x2.5 HT SHS rims.
Reel Method of Support	Hydraulic Gland and Water Discharge Gland
Water Discharge	300 NB Table E flange 300mm from ground level. 40NB Ball valve fitted.

Main Frame Type

Dimension	Overall – 16.335m x 2.55m x 5.2m High Ground contact 7300mm. Mainframe 7900mm x 2400mm.
Weight	Approx 20 Tonne
Skid Runners	360UB56
Wear Plate	20mm Bisalloy 500 - 250mm wide
Cross Members	250x150x6 R.H.S
Reel Frame Uprights	2-250x150x6 & 2 150x150x6mm
Reel Frame	200x100x6 R.H.S
Extension Beams	75x75x4 R.H.S & 127 x 75 x 4 R.H.S.
Extension Bracing	65x65x3 B.H.S and 50x50x3 S.H.S AS1163 C450LO Duragal
Push Pads	250x150x9 R.H.S capped w/-20 ms plate
Engine Mounting	150x100x12 Angle Iron
Engine Canopy	Formed 3mm flat mild steel
Engine Protection	200.N.B. sched 40 pipe mounted on 360 U.B. uprights
Towing Chains	2 of 3.4m long of 20mm Hercalory with 260x140x38 tow-ring link (inside dimension). Attached front end only.
Hose Roller Guide System	6 Shaped roller, bearing mounted in two 12mm MS plate chain driven from four hydraulic motors, in series with the reel motor.

Hydraulic System

Hydraulic Pump	355cc pressure comp flow control piston pump. Flex coupled to engine flywheel
Operating Speed	1800 R/M
Flow at Duty	639 L/M
Max Pressure Rating	4060 P.S.I. (280 bar)
Operating Pressure	3625 P.S.I. (250 bar)
Main Relief Valve	1" high pressure spike relief - catridge type
Twin Port Rotating Gland	Legra type HD for 1½" fittings - H25-000
Auxiliary Control Valve	4 Bank load sense on reel, slew, and tilt and pump support
Reel Drive	Hydraulic motor driving via a 30:1 reduction box & 5:1 x 2” chain reduction
Hose Drive Motor	4 of geroler hydraulic motors
Load Check Valve	Double acting overcentre valves and hydraulic brake coupled to the reel motor
High Pressure Hose System	2" dia. multi spiral high pressure
Return Line	2" dia. double braid low pressure.
Hoses-Auxiliary System	½" or 5/8" dia. Double braid medium pressure
Reservoir	800Lts mild steel fabricated, fitted with oil outlet, oil return, level temperature sight glass, high and low level oil protection, drain outlet. Sand blasted internally.
Auxiliary Hyd Reservoir	100Lts Auxiliary tank fitted to main frame, pumped into main reservoir via the hydraulic filters, and incorporating an electrically operated diaphragm pump. Used for top up of main reservoir.
Return Line Filter	1 of 3" cartridge type. Watchdog pressure gauge fitted, and shuts down engine should elements become clogged.
Oil	Mineral Oil of ISO viscosity grade 22

Power Unit

Engine	Cummins QSX15 or C15 Caterpillar. Turbo charged, after cooled 6 cyl.
Electrical/Watchdog	24V Electric’s, 2 work lights fitted, battery isolator fitted.Engine will be monitored by OEM supplied engine management system all other perameters will be monitored by PLC controlled board with digital fault display.
Fuel Cell	2000Lts capacity with Wiggins fittings. Weld fabricated mild steel mounted on water discharge side of frame. Drain plug fitted. Blasted internally.
Fuel Lines	10mm hydraulic hose on supply line. 10mm hydraulic hose return line.

Painting

All frame work blasted to A.S. class 2½, primed and painted Interfine 629 White.

Functions

Engine at 1000RPM to 1200 RPM	Auxiliary control valve functions. 4 functions - Wet-end lift/ lower Roller Plate Slew for aligning the hose to reel during reclaim Roller Plate traverse for assisting hose and wet-end entry to pit Wet-End Support Bracket supports wet-end and guides hose on initial wall contact
Engine up to 1800 RPM	Operation of pump function

The foregoing specification is correct at time of publication however, LEGRA reserve the right
to amend the specification as required in keeping with market development.

Performance Curve

HW6000 Booster

Quick mobilization and demobilization with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
Eliminates the need for Pump Crew to work in the pit near the Highwall
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering the operations
Able to operate and be serviced in all weather conditions

By incorporating a second (booster) pump unit to the Highwall Pump, performance is improved to 100L/sec @ 200m head TDH. The booster pump is hard plumbed into the outlet of the primary pump, allowing for simple and efficient transferring of water at high head.

Specifications

Water Pump Primary

Pump	Cast Iron Volute. 28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} Chrome Impeller and Suction Plate
Suction	Fabricated screened suction – Galvanized. No footvalve fitted.
Drive	160cc fixed displacement axial piston motor
Speed	Max 2200 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings are lubricated by case oil. Mechanical seal prevents leakage.
Pump Performance	100 L/s @ 100m head unworn pump, clean water @ 2150rpm pump speed
Pump Curve	Impeller clearance is adjusted by bolt/lock nut adjustment

Water Pump Booster

Pump	Cast Iron Volute. 28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} Chrome Impeller and Suction Plate.
Suction	8” drop pipe from reel
Drive	160cc fixed displacement axial piston motor
Speed	Max 2200 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings are lubricated by case oil. Mechanical seal prevents leakage.
Pump Performance	100 L/s @ 100m head unworn pump, clean water @ 2150rpm pump speed
Pump Curve	Impeller clearance is adjusted by bolt/lock nut adjustment.

Wetend Positioning Support

Wheels	2 x 750 x 16” wheels fitted to 1550mm x 40mm axle are mounted across the wet-end, and assist in positioning the wet-end during lifting or lowering.
Support bracket	Hydraulically (ram) operated, acts as support for the wet-end during travelling, and hose positioning during lowering.

Water Conduit

Length / Type	125m of 200f Poly standard supply.
Hydraulic Hoses	1-1½" High pressure - Multi Spiral - pressure hose to motor drive. 1-1½" Medium pressure - Double Braid - hose return line.

Hose Reel

Size	2900f drum. 3700f rim.. Capacity to 125m of 200f Poly.
Construction	R.H.S spokes each side welded to hub flange and rim. 5mm M.S. plate drum.
Reel Method of Support	Hydraulic Gland and Water Discharge Gland
Water Discharge	200NB Table E flange 300mm from ground level. 40NB Ball valve fitted.

Main Frame Type

Dimension	Overall – 13500mm x 2850mm x 4059mm Ground contact 6700mm x 2830mm. Mainframe 7300mm x 2700mm.
Dry Weight	14 tonne
Skid Runners	360UB56. Fitted with 20mm Bisalloy 500 Wear Plate.
Jib Extension Beams	75x75x3 R.H.S & 127 x 75 x 3 R.H.S
Extension Bracing	65x65x3 R.H.S and 50x50x3 S.H
Push Pads	250x150x9 R.H.S capped w/-20 ms plate.
Engine Mounting	150x100x12 Angle Iron
Engine Canopy	Formed 3mm flat mild steel
Engine Protection	200.N.B. sched 40 pipe mounted on 360 U.B. uprights
Towing Chains	2 of 3.4m long of 20mm Hercalloy with 260x140x38 tow-ring link at front.

Hydraulic System

Hydraulic Pump	2 of Rexroth A11VLO190 pressure compensated flow control piston pumps. In Tandem. Coupled to engine flywheel.
Operating Speed	1800 R/M
Flow at Duty	340 L/m. per pump
Max Pressure Rating	4060 P.S.I. (280 bar)
Operating Pressure	3625 P.S.I. (250 bar)
Auxiliary Control Valve	4 Bank load sense on reel, slew, and tilt and pump support.
Reel Drive	Hydraulic motor driving via a 30:1 reduction box & 5:1 x 2” chain reduction.
Load Check Valve	Double acting overcentre valves and hydraulic brake coupled to the reel motor.
High Pressure Hose System	1½"f. multi spiral high pressure.
Return Line	1½"f double braid low pressure.
Hoses-Auxiliary System	½" or 5/8"f double braid medium pressure.
Reservoir	800Lts mild steel fabricated, fitted with oil outlet, oil return.
Auxiliary Hyd Reservoir	100Lts Auxiliary tank fitted to main frame, pumped into main reservoir via the hydraulic filters, and incorporating a 12v transfer pump.
Return Line Filter	2 of 1½" dual element cartridge type. 3 Micron Nominal Filtration
Oil	Mineral Oil of ISO viscosity grade 22

Power Unit

Engine	Cat (C15) or Cummins (QSX15). Turbo charged, after cooled 6 cylinders. Other options available on request
Engine Management	Programmable Logic Control (PLC) controls and monitors all shut-down functions. Protection on engine oil pressure, radiator level, engine temperature, high and low levels of hydraulic oil, high and low hydraulic pressure, high and low water pressure at Booster Pump Suction, and hydraulic filter pressure. First out indicator identifies source of engine shutdown PLC operates speed of Booster Pump to maintain synch with Primary Pump.
Fuel Cell	2200Lts capacity with Wiggins fittings.

Painting

All frame work blasted to A.S. class 2½, primed and painted Interfine 629 White.

Functions

Engine at 800RPM to 1000 RPM	Auxiliary control valve functions. 4 functions - Wet-end lift/ lower Roller Plate Slew for aligning the hose to reel during reclaim Roller Plate traverse for assisting hose and wet-end entry to pit Wet-End Support Bracket supports wet-end and guides hose on initial wall contact
Engine up to 1800 RPM	Operation of pump functions. Booster Pump speed is controlled with PLC. PLC maintains speed of booster pump to ensure a set pressure is maintained at booster pump suction.

The foregoing specification is correct at time of publication however, LEGRA reserve the right to amend the specification as required in keeping with market development.

HW6000

Quick mobilization and demobilization with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
Eliminates the need for Pump Crew to work in the pit near the Highwall
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering the operations
Able to operate and be serviced in all weather conditions

Capacity to 100L/sec @ 100M Head

Specifications

Water Pump

Pump	Cast Iron Volute. 28{fc62a668ba4fc924e3659cb952537edb37ef7e0fa689fb036a45ca818e77ff15} Chrome Impeller and Suction Plate
Suction	Fabricated screened suction – Galvanized. No footvalve fitted.
Drive	160cc fixed displacement axial piston motor
Speed	Max 2200 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings are lubricated by case oil. Mechanical seal prevents leakage.
Pump Performance	100 L/s @ 100m head unworn pump, clean water @ 2150rpm pump speed
Pump Curve	Impeller clearance is adjusted by bolt/lock nut adjustment

Wetend Positioning Support

Wheels	2 x 750 x 16” wheels fitted to 1550mm x 40mm axle are mounted across the wet-end, and assist in positioning the wet-end during lifting or lowering.
Support bracket	Hydraulically (ram) operated, acts as support for the wet-end during travelling, and hose positioning during lowering.

Water Conduit

Length / Type	125m of 200f Poly standard supply.
Hydraulic Hoses	1-1½" High pressure - Multi Spiral - pressure hose to motor drive. 1-1½" Medium pressure - Double Braid - hose return line.

Hose Reel

Size	2900f drum. 3700f rim.. Capacity to 125m of 200f Poly.
Construction	R.H.S spokes each side welded to hub flange and rim. 5mm M.S. plate drum.
Reel Method of Support	Hydraulic Gland and Water Discharge Gland
Water Discharge	200NB Table E flange 300mm from ground level. 40NB Ball valve fitted.

Main Frame Type

Dimension	Overall – 12635mm x 2550mm x 4059mm Ground contact 6400mm x 2628mm. Mainframe 7400mm x 2400mm.
Dry Weight	12.3 tonne
Skid Runners	360UB56. Fitted with 20mm Bisalloy 500 Wear Plate.
Jib Extension Beams	75x75x3 R.H.S & 127 x 75 x 3 R.H.S.
Extension Bracing	65x65x3 R.H.S and 50x50x3 S.H.S.
Push Pads	250x150x9 R.H.S capped w/-20 ms plate.
Engine Mounting	150x100x12 Angle Iron
Engine Canopy	Formed 3mm flat mild steel
Engine Protection	200.N.B. sched 40 pipe mounted on 360 U.B. uprights
Towing Chains	2 of 3.4m long of 20mm Hercalloy with 260x140x38 tow-ring link at front.

Hydraulic System

Hydraulic Pump	Rexroth A11VLO190 pressure compensated flow control piston pump. Coupled to engine flywheel.
Operating Speed	2000 R/M
Flow at Duty	340 L/m. per pump
Max Pressure Rating	4060 P.S.I. (280 bar)
Operating Pressure	3625 P.S.I. (250 bar)
Auxiliary Control Valve	4 Bank load sense on reel, slew, and tilt and pump support.
Reel Drive	Hydraulic motor driving via a 30:1 reduction box & 5:1 x 2” chain reduction.
Load Check Valve	Double acting overcentre valves and hydraulic brake coupled to the reel motor.
High Pressure Hose System	1½"f. multi spiral high pressure.
Return Line	1½"f double braid low pressure.
Hoses-Auxiliary System	½" or 5/8"f double braid medium pressure.
Reservoir	800Lts mild steel fabricated, fitted with oil outlet, oil return.
Auxiliary Hyd Reservoir	100Lts Auxiliary tank fitted to main frame, pumped into main reservoir via the hydraulic filters, and incorporating a 12v transfer pump.
Return Line Filter	2 of 1½" dual element cartridge type. 3 Micron Nominal Filtration
Oil	Mineral Oil of ISO viscosity grade 22

Power Unit

Engine	Cat (C15) or Cummins (QSX15). Turbo charged, after cooled 6 cylinders. Other options available on request
Engine Management	Programmable Logic Control (PLC) controls and monitors all shut-down functions. Protection on engine oil pressure, radiator level, engine temperature, high and low levels of hydraulic oil, high and low hydraulic pressure, and hydraulic filter pressure. Display indicator identifies source of engine shutdown.
Fuel Cell	2200Lts capacity with Wiggins fittings

Painting

All frame work blasted to A.S. class 2½, primed and painted Interfine 629 White.

Functions

Engine at 800RPM to 1000 RPM	Auxiliary control valve functions. 4 functions - Wet-end lift/ lower Roller Plate Slew for aligning the hose to reel during reclaim Roller Plate traverse for assisting hose and wet-end entry to pit Wet-End Support Bracket supports wet-end and guides hose on initial wall contact
Engine up to 1800 RPM	Operation of pump functions. Booster Pump speed is controlled with PLC. PLC maintains speed of booster pump to ensure a set pressure is maintained at booster pump suction.

The foregoing specification is correct at time of publication however, LEGRA reserve the right to amend the specification as required in keeping with market development.

Performance Curve

HW1100

Quick mobilization and demobilization with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
Eliminates the need for Pump Crew to work in the pit near the Highwall
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering the operation
Able to operate and be serviced in all weather conditions
Pump Capacity of 40L/sec @ 100m TDH

Specifications

Water Pump

Pump	Hyd Driven - Single Stage End Suction Centrifugal. Stainless Steel Impeller.
Suction	Fabricated screened suction - footvalve not fitted
Drive	90cc fixed displacement axial piston motor
Speed	Max 2200 R/M
Arrangement	Motor drives pump shaft through a coupling supported by tapered roller bearings in a sealed housing. Bearings lubed by case oil. Mechanical seal prevents leakage.
Pump Performance	Rated 40 L/s @ 100m head. Unworn pump, clean water.
Pump Curve	No 2400-1 calculated 05/01/95

Wetend Positioning Support

Wheels	2 x 750 x 16” wheels fitted to 1550mm x 40mm axle are mounted across the wet-end, and assist in positioning the wet-end during lifting or lowering.
Support bracket	Hydraulically (ram) operated, acts as support for the wet-end during travelling, and hose positioning during lowering.

Water Conduit

Length / Type

. of 140 O.D. Pn10. Special medium density polyethylene pipe.

Hose Reel

Size	2000 f drum. 2500 f rim. 100m capacity when fully layered
Construction	6-65x35x3 R.H.S spokes each side welded to hub flange and rim. 6-65x35x3 R.H.S. spokes rim to drum each side. 3mm M.S. plate on drum
Reel Method of Support	Hydraulic Gland and Water Discharge Gland
Water Discharge	150NB table 'E' flange, approx. 300mm of ground. 40NB Ball valve fitted.

Main Frame Type

Heavy skid base – fully weld fabricated unit construction comprised of UB side runners (with wear plate). HeavyR.H.S. cross pieces, supporting the R.H.S. reel mounting frame and, fixed R.H.S extension. Heavy front tube with push pads, engine mounting, engine canopy, front bars for engine protection, fuel tank mountings, oil reservoir mountings, safety mesh mountings, and tow chain.

Dimension	Overall – 10120mm x 2350mm x 3225mm Ground contact 4650mm x 2159mm. Mainframe 5700 x 1900.
Dry Weight	8.5 tonne
Skid Runners	31O UB 46 fitted with 16mm Bisalloy 500.
Jib Extension	65x65x3 B.H.S and bracing 50x50x3 S.H.S
Push Pads	200x100x9 R.H.S capped w/-20 ms plate
Engine Mounting	150x100x10 A.I.
Engine Canopy	3mm flat mild steel
Towing Chains	2-3 4m long of 20mm Hercalory with 260x140x38 tow-ring link

Hydraulic System

Hydraulic Pump	Variable Displacement Piston Pump 100cc. Coupled to engine flywheel.
Operating Speed	2000 R/M
Flow at Duty	200 L/m
Max Pressure Rating	280 bar.
Operating Pressure	210 bar.
Main Relief Valve	1" spike relief - cartridge type.
Auxiliary Control Valve	4 Bank - operates lift/lower, slew, roller tilt, and pump support.
Reel Drive	Geroler Motor driving through a reduction gear box - Hydraulic Brake Final Drive 5:1 Chain Reduction.
Load Check Valve	Over run protection on reel
High Pressure Hose System	1"dia. Multi Spiral high pressure.
Return Line	11/4"f. Double Braid low pressure.
Hoses-Auxiliary System	½"f. Double Braid medium pressure.
Reservoir	360L mild steel fabricated, fitted with oil outlet, oil return, filter breather, level temperature sight glass, high and low level oil protection, drain outlet.
Auxiliary Hyd Reservoir	100Lts Auxiliary tank fitted to main frame, pumped into main reservoir via the hydraulic filters, and incorporating a 12v transfer pump.
Return Line Filter	1¼" dual element cartridge type. Watchdog pressure gauge fitted
Oil	Mineral Oil of ISO viscosity grade 22

Power Unit

Engine	Cummins 6BT 5.9. Turbo charged, 6cyl 87kW continuos
Electrical/Watchdog	12V Electric’s, 2 work lights fitted, battery isolator fitted.Protection on engine oil pressure, radiator level, engine temperature, high and low levels of hydraulic oil, high and low hydraulic pressure. Shut down also on hydraulic filter pressure and pump suction ball valve position.
Fuel Cell	Unit construction with oil reservoir, 980Lts capacity with Wiggins fittings. Weld fabricated mild steel mounted across main frame between engine and reel support frame. Drain plug fitted. Sand blasted internally.
Fuel Lines	10mm SWB hydraulic hose on supply line. 10mm LP hydraulic hose return line.
Fuel Consumption	24L/hour @ 2000RPM

Painting

All frame work blasted to A.S. class 2½, primed and painted Interfine 629 White.

Functions

Engine at 1000RPM to 1200 RPM	Auxiliary control valve functions. 4 functions - Wet-end lift/ lower Roller Plate Slew for aligning the hose to reel during reclaim Roller Plate traverse for assisting hose and wet-end entry to pit Wet-End Support Bracket supports wet-end and guides hose on initial wall contact
Engine up to 2000 RPM	Operation of pump function.

The foregoing specification is correct at time of publication however, LEGRA reserve the right to amend the specification as required in keeping with market development.