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Condition
1. Top will operate in one
direction only.
2. Top will not operate.
3. All units operate slowly.
.
4. Window raises when top control
valve is operated.
5. One window will not fully close. (A) Insufficient hydraulic fluid.
6. Window lifts operate downward
slowly
TROUBLE SHOOTING
Hydraulic
(A) Top control valve shaft and
rotor not assembled properly.
(A) Foreign material in fluid
lines.
(B) Broken port plate in control
valve.
(C) Broken or disconnected
fluid line.
(D) Defective top operating
cylinder.
(E) Pump has lost "prime".
(A) Pump pressure relief valve
stuck.
(B) Crimped fluid lines.
(C) Internal leakage in top
operating valve.
(D) Improper hydraulic fluid in
system.
(A) Defective window cylinder so-
lenoid valve.
(A) Pump pressure relief valve
stuck.
(B) Hydraulic fluid containing
sludge.
(C) Improper hydraulic fluid in
system
Electrical
(A) Top control valve switch con-
tacts at one point only.
(A) battery low.
(B) Motor solenoid not
operating.
(C) Pump motor inoperative.
(D) Short or ground in switch
circuit.
(E) Switch connection loose or
broken.
(F) Defective ground
connection to motor.
(G) Defective breaker.
(H) Connection from battery to
solenoid defective.
(A) Low battery.
(B) Oilite bearing in top of motor
binding.
(A) Window switch shorted.
(B) Battery wire in contact with
cylinder wire
BODY MANUAL
Mechanical
(A) Top valve control rod improp-
erly adjusted.
(A) Units possibly misaligned.
(A) Glass run channel
misaligned.
(B) Stops improperly adjusted.
(C) Glass misaligned.
95
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