Kalmar ContChamp DRD S Series, Техническое руководство

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ContChamp DRD-S
Technical Handbook
Main valve
Service
40 S. Grupp 70
9407
04-10
Main valve
The main valves are of precision type and must be handled with
great care to safeguard their good performance. The following
rules apply to service work:
1. Never use the spool ends or housings for clamping or
gripping when lifting a valve block.
2. Never subject spool ends or housings to blows or shocks.
Rough treatment may deform the spool, which will lead to im-
mediate seizure.
3. Protect the valves from moisture and dirt. Take particular care
to prevent dirt from entering the connection ports. Protect the
ports and other joint faces to prevent scoring and
bruising. Keep unconnected ports plugged with plastic plugs
or the like.
4. When fitting pipes and hose couplings, observe meticulous
cleanliness. Make sure that no swarf, flakes of paint or other
impurities enter the valve. To avoid unnecessary stresses in
the valve, do not overtighten the couplings.
Main valve – adjusting max pressure
N.B. The pump is set to a lower pressure.
See Setting of variable pumps.
1. Adjustment of main pressure
limiting valve
2. Locknut
3. Return
4. Supply
5. Measurement tapping