1. INTRODUCTION This manual provides information on the safe operation, servicing and repair of the following models of RuggedMade gasoline engine hydraulic power packs: MHP9-20 MHP13-20/30 The first number denotes the horsepower of the engine fitted to the power pack. The second number denotes the flow in liters per minute.
Below 0°C (32°F) use grade ISO 22 hydraulic oil. Between 0°C and 30°C (32°F to 86°F) use grade ISO 32 hydraulic oil. Above 30°C (86°F) use grade ISO 46 hydraulic oil. The capacity of the oil tank including priming the pump and pack hoses is 13.5L (3.5 gal) for MHP9/20, 12L (3.2 gal) for MHP13/20 &...
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Turn fuel petcock off when not in use. This machine must not be modified in any way without written permission of the manufacturer. Unauthorized modifications are likely to invalidate the warranty and also result in the machine not conforming to safety regulations. Always comply with site safety regulations.
6. OPERATION Ensure the power pack is positioned safely; Check the hydraulic oil in the power pack is suitable for the ambient temperature. See section on recommended hydraulic oils; Check hoses and machine for damage; Check hydraulic level; Check operation and cleanliness of couplings; Check that any hydraulic tools to be used are compatible with the flow and pressure available from the power pack.
the engine when the tool is being used and allows the engine to slow down to tick-over when the tool control is released; Never disconnect couplings with the flow control handle in the on position as the hoses will remain pressurized and it will be impossible to reconnect.
If engine speed needs to be set higher than 3600 rpm to achieve the required flow this indicates that the pump and/or diverter valve may be worn. Tool fault – check tool handbook. FOAMING OR MILK COLOURED HYDRAULIC OIL Air or water in the oil. Check filler cap is tight. If associated with poor breaker performance the breaker accumulator may have degassed.
This assists in assembly and lessens the risk of seal damage. Use only seals provided in component service kits, which are obtainable from RuggedMade engineering co.,ltd or their agents, as these will be of a different composition and hardness to seals normally commercially available.
10. FLOW AND PRESSURE RELIEF VALVE ADJUSTMENT Method 1: RuggedMade power packs are all pre-set for correct flow and pressure prior to dispatch. Proceed as follows: 1. Remove the protective upper cover in the front of the power pack.
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minute. If the flow rate is incorrect go to next paragraph. If flow rate is correct go to paragraph 6. 6. If the Power-On-Demand (POD) cylinder is working correctly, the speed of the engine will need to be adjusted by repositioning the POD in its bracket.
13. Carry out a functional test by operating a tool, preferably a breaker, and checking for satisfactory operation. 11. PARTS WARRANTY All products supplied by RuggedMade are warranted to be free of defects due to faulty materials or workmanship for a period of 30 days from the date of original purchase.
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PARTS LIST HYDRAULIC POWER PACK MHP9-20...
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FUEL TANK ASSY. ITEM DESCRIPTION PART NO. REMARKS HEXAGON SOCKET HEAD CAP SCREWS GB70.1-M4x15 HYDRAULIC AIR FILTER EF1-25 HEXAGON SOCKET BUTTON HEAD GB70.2-M5x20 SCREWS FUEL TANK COVER ASSY.. PHP9/20.04.02 TANK GASKET PHP9/20.04-01 COUNTERSUNK HEAD RIVETED NUTS GB17880.2-M5 LIQUID TEMPERATURE GAUGE YWZ1-80T FUEL TANK PHP9/20.04.01...
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VALVE ASSY. ITEM DESCRIPTION PART NO. REMARKS SWITCH KNOB PHP9/20.05-04 SWITCH AXLE PHP9/20.05-05 SPRING CYLINDRICAL PIN GB879.2-4x20 O-RING SEAL RING C0 0008A PIPE EXTERNAL THREAD RUBBER GASKET 4BN-02WD SEALING PLUG RPEC LAN 138bar 01 INSTRUMENTATION OVERFLOW VALVE K9K1 COMBINED SEALING WASHER SCR236 PIPE THREAD 60°SEAL JOINT 1B-06-08...
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OIL PUMP ASSY. ITEM DESCRIPTION PART NO. REMARKS SQUARE SET SCREWS WITH LONG DOG GB85-M6x16 POINT INPUT COUPLING HEAD PHP9/20.03.01-01 STAR OF FLEXIBLE COUPLING RUBBER PHP9/20.03.01-02W PIECES INPUT COUPLING HEAD PHP9/20.03.01-3 SQUARE SET SCREWS WITH LONG DOG GB85-M5x25 POINT SHAFT COUPLING ASSY. PHP9/20.03.01 OIL PUMP INSTALLATION OF FLANGE PHP9/20.03-01...
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FAN ASSY. ITEM DESCRIPTION PART NO. REMARKS SPRING CYLINDRICAL PIN GB879.2-6x16 FLANGE PHP9/20.02-01 HEXAGON SOCKET HEAD CAP 5/16-24UNF*1" SCREWS(AMERICAN STANDARD) ANSIB18.3 STRIP CLAMP TJBC-φ15 WASHER GB97.1-6 STANDARD SPRING WAHSER GB93-6 HEXAGON SOCKET HEAD CAP SCREWS GB70.1-M6x20 HYDRAULIC OIL RADIATOR PHP9/20.02.03 FAN SHELL ASSY.
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FRAME ASSY. ITEM DESCRIPTION PART NO. REMARKS ENGINE ASSY. QX270UT2-Q.A2 HEXAGONAL HEAD BOLT GB5783-M10x45 FLAT WASHER GB97.1-10 STANDARD SPRING WAHSER GB93-10 I TYPE HEXAGON NUT GB6170-M10 CIRCULAR PIPE(BLACK) SR1530 O-RING GB3452.1-5.3x100 HEXAGON SOCKET BUTTON HEAD GB70.2-M6x10 SCREWS BIG WASHER GB96.1-6 PANEL PHP9/20.01-06 RIGHT PANEL...
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THROTTLE SERVO ASSY. ITEM DESCRIPTION PART NO. REMARKS PUSHER PHP9/20.07-01 I TYPE HEXAGON NUT GB6170-M8 SERVO CYLINDER FRONT COVE PHP9/20.07-03 O-RING SEAL C0 0515A WIPER SEAL WSA0 0 0060-N9MN O-RING SEAL C0 006A RETURN SPRING PHP9/20.07-04 CYLINDER POLE PHP9/20.07-02 SERVO CYLINDER PHP9/20.07-05 CYLINDER SUPPORT PHP9/20.07.01...
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