Cissell BOOSTERMAN386, Руководство по техническому обслуживанию и устранению неисправностей

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Information subject to change without notice.
TROUBLE SHOOTING LIST OF THE HYDRAULIC BOOSTER
(see also “example of assembling” Fig. 1 to 8)
What to do if: 1 . Press opens too slowly.
2 . Booster gives no pressure.
3. Press looses pressure during cycle.
4 . Loss of oil / Loss of pressure.
When disassembling the Booster, all Packings and O-Rings have to be replaced prefer-
ably. This is less expensive than disassembling resp. reassembling of Booster every
time.
At least once a year the Hydraulic Oil in the Booster has to be replaced, because the
Oil reduces its viscosity and could be penetrated with dust or dirt.
1. Press opens too slowly
a ) BOOSTER NUT 893 (see Fig. 8) has been driven in, hindering back flow of oil.
If the Booster Nut is slightly driven in, it might be sufficient to adjust Booster
Valve 10306 somewhat higher (see Fig. 7).
Otherwise a new Booster Nut has to be mounted.
b) AIR BOOSTER SPRING 50092 is broken (see Fig. 8) or has not sufficient
tension anymore. Requires replacement.
2 . Booster gives no pressure
Check whether Operating Valve in resting position allows air to pass to booster, so
that this valve is already worked out before operated.
3 . Press loses pressure during cycle
a ) Check if air supply line is leaky.
b) It may occur that there is a leakage between Check Valve Stem 30595 and Seat
(see Fig. 1). If necessary, replace Valve and adjust Seat. Former presses have
been equipped with a metallic Valve instead of a plastic one.
Such metallic Valve has to be tightened by means of an O-Ring. Old parts can
simply be replaced by 30595.
c) BACK-UP RING 30025 and O-RING 30029 (see Fig. 2) require replacement.
Damages on Back-Up Ring can be hardly located, because of small cracks.
Check also O-Ring 30032; after longer use this )-Ring can be damaged.