Repair Manual and Spare Parts List ZF 45C / 63C / 88C
32
Syptom
Possibly cause
Remedy
11. Fluid leakage at
11.1 Excessive fluid in
Pump excessive fluid out
breather
transmission
with commercial hand pump
12. Fluid leakage at
12.1 Bolts are not tight
Tighten bolts with prescribe
joints
torque.
12.2 Seals on bolts have
Replace seals, tighten bolts
used several times
with prescribed torque
12.3 Mating faces are
Unscrew housing half, finish
contaminated, no surface
mating faces with oilstone
seal applied
or finishing file, apply surface seal.
Assemble transmission, tighten bolts
with correct torque.
13. Transmission noise
13.1 Fluid level too low so
Top up with fluid to
becomes louder
that pump sucks in air.
marking on dipstick.
13.2 Damage starting on
Replace flexible coupling.
flexible coupling due to
Check alignment between
wear or fatigue, possible
engine and transmission.
due to misalignment
between engine and
transmission.
13.3 Beginning damage of
Disassemble transmission,
bearings in transmission,
replace bearings concerned
e.g. due to torsional
and other faulty parts. Find
vibrations, running without
causes and remedy.
fluid, overload,
wrong alignment of
transmission excessive
engine output
13.4 Beginning damage of
Disassemble transmission,
gearings, e.g. due to
remove faulty parts.
torsional vibrations,
running without fluid,
overload
13.5 Dirty fine filter
Clean or replace fine filter
14. Chattering
14.1 The engine or propeller
Mount a flexible coupling
transmission noise
generate torsional
with another stiffness
mainly at low engine
vibrations in the drive
factor between engine and
speed
unit which produce a
transmission; a coupling
“chattering” noise in the
with a higher stiffness
transmission
factor might be sufficient.
Otherwise analyse the
torsional vibrations to find
out the required stiffness
for the coupling.
14.2 Misaligned propeller
Mount and align propeller
shaft on output
shaft strictly according to
instructions issued by
shaft manufacturer.
Summary of Contents for ZF 45 C - Toyota
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