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Page 10/11

International Service Information

International Service Information

Dec. 22nd,1999

HD 1050 DE Cage

New Unit Information

Troubleshooting

Problem

Remedy

Engine does not start.

Check / clean fuel system.
Check engine stop lever.
Check decompression lever.
Check starter battery and charging regulator.

Engine r.p.m. fluctuates.

Check / clean / replace air filter.

Eliminate leakages in high-pressure system:
handgun, high-pressure hose, cleaning agent system,
non-return valve, overflow valve, valve seat of the ball.

Low operating pressure and flow
rate

Check / replace high-pressure nozzle.
Check / clean water inlet filter.
Check / adjust engine r.p.m.
Eliminate leakages in high-pressure system (as
mentioned above).
Check / adjust spring at overflow valve.
Replace suction and pressure valves.
Replace high-pressure and low-pressure seals.

Pump does not draw in any
cleaning agent.

Clean cleaning agent system and eliminate leakages.
High-pressure hose is too long or its inner diameter too
small.

Note:
Cleaning agent is only drawn in during low-
pressure operation when the servopress handgun
is completely opened.

Replace injector:
- Unscrew front injector as much as possible.
- Then slowly pull through hand start rope.

  While doing so, the engine must not start.

- The resulting pump pressure pushes both

  injectors out of the high-pressure outlet.

Summary of Contents for HD 1050 DE Cage

Page 1: ...Page 1 11 InternationalServiceInformation International Service Information Dec 22nd 1999 HD 1050 DE Cage New Unit Information HD 1050 DE Cage 1 810 993 5 905 870...

Page 2: ...low control 3 Servopress handgun 4 Spray lance 5 Three way nozzle 6 Yanmar diesel engine 7 Throttle lever engine stop 8 Oil dipstick 9 Recoil hand starter 10 Fuel tank 11 Battery 12 Pressure gauge 13...

Page 3: ...ode High pressure pump Similar to HD 895 S 3 piston axial pump Piston made of stainless steel diameter 16 mm High pressure seals low pressure seals oil seals Cylinder head made of brass Suction and pr...

Page 4: ...ew Unit Information Technical features high pressure pump 1 Pressure gauge 2 Non returnvalve 3 Pressurevalve 4 Oilreservoir 5 Shaftseal 6 Swash plate bearing 7 Swashplate 8 Axial roller bearing 9 Oil...

Page 5: ...or 3 Cleaningagentconnection 4 Controlpressureinjector 5 Pressure gauge 6 Non returnvalvescrewplug 7 Pressurechamber 8 Connection bore from pressure chamber to ball 9 9 Ball 10 Spring 11 Suctionchambe...

Page 6: ...the ball 9 off its seat so that part of the water can flow through the connection bores 8 and 12 to the suction chamber 11 3 Servopress handgun is completely closed When the handgun is completely clos...

Page 7: ...en cable Note The governor springs 3 and 4 must be attached in the holes of the governor levers 5 and 6 1 Adjusting screw 2 Spring 3 Clamping screw 4 Governor spring 5 Governor spring 6 Governor lever...

Page 8: ...tervolume open it and operate the unit Closeshut offvalve 1 slowlyuntillowpressure flow rate has been achieved see technical data This corresponds to the smallest servopress setting Measure flow rate...

Page 9: ...sponding operating speed must also be achieved see technical data Close and open servopress handgun several timesandchecktheadjustment Whenthe handgun is closed the pump pressure decreases circulation...

Page 10: ...high pressure nozzle Check clean water inlet filter Check adjust engine r p m Eliminate leakages in high pressure system as mentioned above Check adjust spring at overflow valve Replace suction and pr...

Page 11: ...m Fastening screw for pressure valve 40 45 Nm Injector 1 5 2 5 Nm Valve seat for safety valve 8 10 Nm The technical data sheet and circuit diagram are on the next edition of the Spare Parts CD ROM DIS...

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