Westerbeke 50 - Trouble Shooting Chart

C. Trouble Shooting Chart
PROBLEM
GEAR INOPERATiVE
Drive Shaft does not operate
with selector valve in forward
or reverse.
S.33
POSSIBLE CAUSES AND METHODS OF CORRECTION
1. Low Oll Pressure.
a. Low oil supply. Add oll, refer to
lubrication.
b. Faulty oil gauge. Replace gauge.
Oil gauge slow to register, air or
obstruction in oll gauge line. Clean
and
bleed oil gauge line.
c. Plugged oil lines or passages.
Clean lines or passages.
d. Oil pressure relief valve scored
and sticking. Remove relief valve.
Clean valve and valve bore in
control valve housing with crocus
cloth to free valve, or replace.
e. Defective pistons and oil distributor
seal rings. Replace seal rings.
f. Defective oil pump. Check for wear
and replace if necessary.
2. High Oil Temperature a. Low oil supply. Add oil, refer to
lubrication.
3. Reverse Band not
engaging
Planetary
Gear Cage.
4. Failure of Planetary
Assembly.
5. Failure of Reduction
Gear.
b. Low water level in cooling system.
Add v'ater, and check for leaks.
c. Plugged raw water inlet screen.
Clean screen.
d. Collapsed or diSintegrated water
inlet hose. Replace hose.
e. Air leak in cooling water suction
line~ Replace suction line.
f. Raw watar pump impeller worn or
damaged. Replace impeller.
g. Clogged or dirty oil cooler element.
Remove and clean
a. Reverse band lining worn out.
Replace lining.
b. Defective
reverse piston "0" ring.
Replace "0" ring.
Remove gear case assembly, and check
for defective or damaged parts. Replace
defective
or damaged parts.
Remove reduction gear assembly and
check
for defective or damaged parts.
Replace defective or damaged parts.