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HD 1050

Trouble shooting

17

4.  Visible water leakage

4.1 Relief valve

Unscrew the nuts, pull off the springs and un-
screw the screw plug.

Pull the rod together with the piston out of the
housing.

Heat the rod and screw out the piston.

Replace the O-ring and O-ring sets.

For fitting instructions, see page 12.

4.2  Leakage between the cylinder head and

relief-valve housing

Unscrew the screws and remove the relief-
valve housing.

Replace the O-ring, applying silicon grease
before fitting.

Remount the housing and tighten the screws to
a torque of 9 Nm.

Содержание HD 1050 B

Страница 1: ...Service Handbook HD 1050 5 905 032 07 97...

Страница 2: ...products are specifically designed to be used as operating manuals during initial product familarization and to serve as reference works thereafter All of the referred measures are augmented by regul...

Страница 3: ...n closed 8 B Basic settings 9 1 Checking the pump delivery 9 2 Checking the relief valve opening pressure 9 3 Adjusting the relief valve 9 4 Checking the detergent feed 10 5 Checking the detergent flo...

Страница 4: ...tor ist switched on the pump draws water from the water tank or container through the filter and non return valve and delivers it at high pressure through the high pressure hose and hand gun to the 3...

Страница 5: ...ning with detergent With the 3 way nozzle switched to low pressure large nozzle bore the water passes at high speed through the injector and this results in a reduction in pressure vacuum at the deter...

Страница 6: ...gent metering spindle is turned clock wise as far as it will go the O position is reached an no detergent should be drawn in 7 Nozzle setting At standard working pressure 3 way nozzle set to 0 pencil...

Страница 7: ...outlet to the spray lance 10 Function with Servopress hand gun partly closed Relief valve partialy opened Partial circulation operation lf the Servopress hand gun is partialy closed the pressure gener...

Страница 8: ...maintained and the entire delivery from the pump is fed back to the suction side The high pressure above the pressure holding valve fed by way of the pressure channel holds the relief valve against i...

Страница 9: ...nect the standard equipment to the cleaner Servopress hand gun spray lance nozzle and hose Start the cleaner Set the Servopress hand gun to Position 1 Read the pressure on the pressure gauge Required...

Страница 10: ...If detergent is drawn in then the knob must be pulled off and the detergent metering valve should then be turned hand tight to close the valve completely and then the knob should be pressed back on th...

Страница 11: ...does not come up to pressure 2 1 Inadequate water supply Check water supply hose not less than 3 4 i d A supply of at least 16 litres of water per min must be available 2 2 Pump not vented of air Swit...

Страница 12: ...iers special tool Check the valve seat and valve plate for wear if needed replace the complete valve When installing the valve screw tighten it with a torque of 50 Nm Dismantle the relief valve comple...

Страница 13: ...eaks Detergent non return valve defective or fitted incorrectly Pull the hose off the nipple Unscrew the hose nipple Check the spring ball and O ring and replace parts if necessary Insert the O ring b...

Страница 14: ...late for dirt or grooves and replace them if necessary Check the O rings of the housing cover and replace them if necessary Note The support rings and O rings should first be coated with silicon greas...

Страница 15: ...and tighten with a torque of 65 Nm 3 3 Checking the relief valve Unscrew the locknut and adjusting nut and pull off the washer and springs from the rod Unscrew the screw plug Pull out the rod and pist...

Страница 16: ...the new piston to the rod with Loctite No 6 869 028 3 4 Checking the valve seat Remove the complete relief valve Unscrew the screw plug Check the spring and ball for wear and replace them if necessar...

Страница 17: ...on out of the housing Heat the rod and screw out the piston Replace the O ring and O ring sets For fitting instructions see page 12 4 2 Leakage between the cylinder head and relief valve housing Unscr...

Страница 18: ...ool Caution Note that the sealing lips must face towards the cylinder head 4 4 Replacing the low pressure seal Remove the brass bushing with washers Replace the plastic washer low pressure seal ring a...

Страница 19: ...n the oil drain plug and tighten with a torque of 45 Nm Caution Fill with correct oil see technical data 5 2 Piston seals and housing seal leaking Unsrew the housing fastening srews and replace them w...

Страница 20: ...ing of grease and oil Note The new oil seal rings should be soaked in water for some time before they are fitted Without applying any grease or oil fit the oil seal rings in the housing using the moun...

Страница 21: ...fully lever out the oil seal rings with a screwdriver Fit new oil seal rings without applying grease Check the swash plate for wear and replace if necessary Remove the fastening screw and washer Use t...

Страница 22: ...ousing with a wooden hammer While the housing is still hot fit it with the new ball bearing race cold and tap it in with a brass drift Press the bearing from the swash plate and press on the new one F...

Страница 23: ...030 Shutoff valve 4 901 038 Swash plate puller 4 901 062 Pliers for valve removal 5 901 069 Servopress hand gun mounting mandril 5 901 070 Servopress hand gun mounting tool 6 815 029 Valve seat intern...

Страница 24: ...ion Amp 13 0 Setting of motor overload trip Amp 14 5 15 0 High pressure nozzle 055 Working pressure full load bar 185 195 Working pressure part load bar 10 Circulation pressure bar 10 Relief valve ope...

Страница 25: ...diagram 25 Phases L1 L2 and L3 are connected to the motor by way of the cleaner s motor protective switch Q1 with integral thermal overload protection M 1 Motor Q1 Motor protective switch with thermal...

Страница 26: ...Notes HD 1050 26...

Страница 27: ...HD 1050 Notes 27...

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