NMC-WOLLARD MB-4 200-DF, Инструкция по эксплуатации, техническому обслуживанию и запасным частям

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Test and Troubleshooting
100
11
DPSG,YZ07927,95 –19–22JUN99–1/1
LOW OIL PRESSURE
IN ONE GEAR
Symptom Problem
Solution
Low pressure on one gear but all Contaminated solenoid valve spool. Disassemble and clean entire control
right in other gears. valve. Replace filter and
transmission fluid.
Broken wire to one solenoid, or dirty Repair wire (see solenoid chart for
connection. electrical valves and locations).
Outer or inner piston seal leaking. Replace seals.
Shaft seal ring leaking. Replace seal ring.
IMPORTANT: If a solenoid is removed from the valve it has to be reinstalled in the same location.
To determine the defective clutch is simply a matter of elimination. For example, if the gear selected used solenoids 6
and 3, and low pressure is indicated, select another clutch that uses one of those solenoids. If pressure is good, then
the solenoid or clutch not selected is the one that is bad. To confirm that this is the faulty circuit, select another clutch
that uses this solenoid, to assure that the discrepancy is actually in this solenoid or clutch.
Example:
Clutch Selected
Indiation Action
Uses solenoids 6 & 3 Low pressure Solenoid or clutch 6 or 3 is defective.
Uses solenoids 5 & 3 Pressure O.K. Solenoid or clutch 6 is defective.
Uses solenoids 6 & 2 Low pressure Confirms solenoid or clutch 6 is defective.
CTM195 (28JUL99)
100-11
2000 Series Transmission
072899
PN=49