134
Servicing the fluid pump
Fluid pump removal
1. Relieve the pressure.
2. Flush the spraying material out of the device.
3. Remove the cover (12) on the connecting rod.
4. Move the piston rod (10) to the bottom position by
letting the pump run slowly.
5. Switch off the motor and isolate the device from the
power supply.
6. Remove the circlip (4) from the connecting rod (2)
and push the sleeve (3) downward to expose the pin
(1) on the connecting rod.
7. Remove the suction pipe from the fluid pump (9) by
releasing the valve nut (7) with the packing adjust-
ment tool.
8. Remove the two screws (8) and the cover (14). The
fluid pump (9) is now loosely suspended.
9. Remove the pin (1) on the connecting rod from the
connecting rod (13) so that the fluid pump (9) can be
removed.
Reassembling the fluid pump
1. Loosen the gland nut and make sure that the piston
rod (10) is at the topmost position of the fluid pump
housing. Push the sleeve (3) and the circlip (4) over
the piston rod (10).
2. Push the piston rod (10) upward into the connec-
ting rod (2). Push the pin (1) on the connecting rod
through the connecting rod (2) and the piston. Push
the sleeve (3) upward over the pin (1) on the connec-
ting rod and then push the circlip (4) into the groove
on the connecting rod (2).
3. Push the two pipe spacers (11) between the fluid
pump (9) and the cover (14), and push the two screws
(8) through the spacers; then tighten the screws
evenly (alternately).
4. Re-assemble the lower suction valve group by pla-
cing the seating, the o-ring, the ball and the ball
guide into the valve nut (7) and bolting onto the fluid
pump housing.
5. Re-attach the pressure regulator button on the fluid
pump housing.
6. Start the pump and run it slowly to check whether
the piston rod (10) is correctly set. If needed, adjust
the two screws (8) that hold the cover on the fluid
pump housing. This prevents the piston rod from blo-
cking.
7. Tighten the gland nut clockwise until you feel some
resistance against the disc spring; tighten ano-
ther three quarter turn. The tightening torque of the
packing nut amounts to 2,7 Nm. Fill five drops of
piston oil into the gland nut.
8. Run the pump for a few minutes at full pressure.
Relieve the pressure as described in the section about
depressurization (Section 4.) and then adjust the
gland nut – as shown in step 7 above.
9. Attach the cover of the connecting rod.
Summary of Contents for LP 400 F
Page 1: ...Airless LP 400 F DE NL FR IT GB CZ ...
Page 22: ...22 Ersatzteillisten Motor Antrieb ...
Page 52: ...52 Motor aandrijving ...
Page 82: ...82 Nomenclatures de pièces de rechange Moteur entraînement ...
Page 112: ...112 Elenchi dei pezzi di ricambio Motore Azionamento ...
Page 142: ...142 Spare parts lists Motor gearbox ...
Page 172: ...172 Seznamy náhradních dílů Motor pohon ...
Page 182: ...182 ...
Page 183: ...183 ...