KREMLIN
Page 9
Manual : 573.049.112
11. SERVICING
SUCTION VALVE
Unscrew suction tube (24).
Hold feeding rod (25).
Unscrew nut (40).
Remove feeding seat (30), feeding valve (29) and support ring (28).
Make suction valve seat (18), housing (20) and suction valve (A) slide.
Clean the parts. Replace them if necessary.
EXHAUST VALVE
Unscrew cylinder (50).
Unscrew feeding rod (25).
Remove exhaust valve (16).
Remove exhaust seat (51).
Clean the parts, reinstall them or remplace exhaust cylinder-seat assembly.
UPPER PACKING
Separate motor piston rod from hydraulic piston (15)
Unscrew wetting-cup (8).
Pull piston (15) upwards to remove upper packing seals (6).
Reinstall parts in reverse order. Be certain seals (6) are installed in proprer direction.
Tighten wetting-cup (8).
After reassembly, fill up the pump with solvent and increase pressure to maximum in the
hydraulic section. Then stop the pump and open exhaust valve to depressurize.
Retighten wetting-cup (8) to increase the upper packing tightness by means of an appropriate
metallic rod.
REVERSING
BLOCK
(MOTOR)
Disassemble cover (32) by removing screws CHc (33).
Dissociate female yoke (12) from reversing block lever (9).
Dismount reversing block by removing screws (10 and 8).
Reinstall the new reversing block in the reverse order of the disassembly sequence.
31.85 mm ±0.5
Â
CAUTION : The number of spirals must equally be distributed on each
fastening parts in order to get the above dimension.