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Contents
Unit function .................................................................................... 2-15
Equipment .............................................................................................................................. 2
Functional diagram ................................................................................................................ 4
Pump ... .................................................................................................................................. 6
Pressure and flow control with the Servopress handgun ...................................................... 8
Detergent injector with non-return valve .............................................................................. 10
Detergent metering valve .................................................................................................... 11
Hand gun with pressure and flow control
Servopress with low-effort version ....................................................................................... 12
Changeover nozzle .............................................................................................................. 14
Circuit diagram 0.087-804 ................................................................................................... 15
Troubleshooting and basic settings ............................................. 16-29
Unit does not run ................................................................................................................. 16
Unit does not reach required pressure ................................................................................ 18
Unit switches on and off continuously ................................................................................. 23
No detergent function .......................................................................................................... 26
Water escaping between cylinder head and housing ......................................................... 27
Oil escaping between cylinder head and housing .............................................................. 28
Swash plate/shaft sealing ring/motor bearing defective ..................................................... 29
Special tools ....................................................................................... 30
Technical data ................................................................................ 31-32
Summary of Contents for HD 1090
Page 1: ...HD 1090 Service Handbook 0 I 5 905 212 03 02...
Page 4: ...2 Unit function Equipment 10 15 12 9 10 13 11 14 16 1 8 2 3 4 5 6 7 0 I...
Page 6: ...4 Unit function Functional diagram 5 3 7 8 9 10 11 12 13 14 2 1 15 16 17 4 6...
Page 8: ...6 Unit function Pump 15 17 18 10 12 13 11 14 16 20 9 12 11 1 8 2 3 4 5 6 7 11 19 21...
Page 10: ...8 Unit function Pressure and flow control with the Servopress handgun 1 2 4 3...
Page 14: ...12 Unit function Handgun with pressure and flow control Servopress with low effort version...