HAMMELMANN B7.02502.0210, Руководство по эксплуатации

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Maintenance
Operating instructions
No.: HDP 502 / S 1100-50
Page 57, Issue: 03.2017
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Copyright Hammelmann GmbH
Germany
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D-59302 Oelde
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Carl-Zeiss-Straße 6 - 8
Pos : 88 /Instandhaltung/Pumpen/Pumpenkopf/PK 1239 HDP 360- 500 (DKV) @ 9\mod_1367571631332_2.doc x @ 76551 @ 233 @ 1
11.6 Maintenance of the pump head 00.02145.1239
(-003)
The pump head is subject to minor wearing. Maintenance is required, i.e. if a decrease of pressure or a restless run
of the pump is determined.
Before beginning to work ensure that the medium supply is switched off.
Care for cleanliness at the workplace! Dirt or i.e. little swarfs can affect the function of the
pump if they i.e. get into the valve guide or similar.
11.6.1 Disassembly (ref. to fig. pump head)
At every removing/disassembly of the pump head/valve housing check the torque of
item 500. If necessary retighten!
 Disassembly of the pump head
 Remove the pump head of the crank section or suction chamber.
 To do so: If necessary disconnect and remove all hoses and parts from the pump head.
 By using a 14 mm Allen key unscrew the hex. socket head screws (90). Thereby the casings from piston seal
assembly are now loosened.
 Working crosswise use 32 mm socket and torque wrench to remove the head retaining nuts (520).
 Lift the pump head (valve housing) from the crank section and turn it by 180°. If necessary do it with two men
or a suitable lifting device. Ensure that no pump head parts fall away.
 Disassemble the pump head on a workbench or in a vice if possible.
Always lay the parts in order of the removal and in individual sets. Mark them with a felt-tip pen if necessary.
 Disassembly of the pump head
The following instructions are made for one valve set.
Be extremely careful when removing the valve seat rings (150). Making the slightest scratch
or mark will eventually cause the component to crack.
 The following instructions are made for one valve set.
 Remove valve seat ring (150) from the sleeve of the seal assembly. Ensure that the suction valve (30) does not
fall away. Remove the pressure valve (30) from the valve seat (150). Remove the suction valve (30) from the
valve seat ring (150) or from the tappet (550).
 If necessary remove the cylinder rings (40) from the valve seat ring (150).
 Remove tappet (550), spring (140) and if necessary the bushing (160) from the seal assembly (casing).
 By using a 24 mm spanner unscrew if necessary the screw in piece (500) out of the valve housing and remove
the tappet (510) with spring (20) from the valve housing (10).