26
TROUBLE
PROBABLE CAUSE
CORRECTIVE ACTION
M
Filter bypass indicator light
remains on.
1. Filter plugged, remaining in
bypass mode.
2. Cold, thick winch oil causing filter
to bypass.
3. Defective indicator sending
switch, or chaffed/grounded sending
switch wire (green wire / # 9 at diag-
nostic connector)
1. Replace filter, change oil, clean suction
strainer. Cut open pressure filter element if
necessary to determine origin of contami-
nation and take corrective action as
required.
2. Use the proper viscosity oil for your
ambient temperature.
3. The indicator light is a ground seeking
circuit. The light will be on if the wire has
chaffed and shorted to ground or if the
switch is stuck in the "bypass" position.
Replace the sending switch as required.
N
Brake will not release fully in
BRAKE-OFF. All other func-
tion OK.
1. Low brake release pressure,
pressure drops when winch is hot.
1. Install a gauge at the "B" port on the
brake housing. Place the control lever in
the BRAKE-OFF position. The gauge pres-
sure should rise proportionally to the
amount of lever movement toward full
BRAKE-OFF. Gauge pressure should be
the same as the main system pressure,
less no more than 15 PSI (100 kPa). If the
pressure is more than 15 PSI (100 kPa)
below main system pressure, the propor-
tional solenoid valve (BR - item 2) is stick-
ing and should be replaced.
Summary of Contents for CARCO 50B
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