Malfunction
Probable Cause
Corrective Action
14. Continuous axle noise
Badly worn parts
Replace defective parts (para 3-20 or
pars 3-21)
15. Complete failure of drive axle to
a. Broken axle shaft
a. Replace axle shaft (para 3-21)
function
-b. Broken teeth on drive gear or
b. Replace defective parts as
pinion gear
necessary (para 3-21)
16. Excessive backlash in drive axle
a. Loose axle shaft drive flange cap
a. Tighten cap screws (para 3-21)
screws
b. Worn splines on axle shaft at
b. Replace defective parts as,
differential end
required (para 3-21)
c. Differential drive pinion gear and
c. Replace defective parts as required
drive gear defective
17. Steering wheel does not center
Binding in linkage valve or broken
Replace defective parts as required
centering spring
18. Steering is difficult
Defective steering gear or related part
Replace defective parts as required
19. Brakes drag
Scored or defective brake drums
Repair or replace brake drums (para
20. Hydraulic cylinders chatter
Cylinders are defective
Replace or repair defective cylinders
during operation
as required (para 3-1 and 3-2)
21. Hydraulic pump makes unusual
a. Pump intake partially blocked.
a. Clean pump intakes (para 3-13)
noises
b. Air leaks at the intake or shaft seal
b. Inspect for loose connections and
damaged seals. Tighten con-
nections and replace defective
seals as required (para 3-13)
c. Defective parts
c. Repair pump (para 3-13)
22. Initial transmission engagement
Control pressure too high
Clean control valve (para 3-14) and
too rough
pressure regulator (pars 3-16).
23. Initial transmission engagement
a. Rear band loose
a. Adjust rear band (para 4-6)
delayed
b. Control pressure too low
,b. Clean control valve (pars 4-5) and
pressure regulator (para 4-3)
24. Transmission inoperative in all
Defective pump
Replace pump (para 4-8)
ranges
25. Transmission slips
it. Low control pressure
a. Clean control valve (para 4-5) and
pressure regulator (para 4-3)
b. Rear servo travel limited
b. Repair or replace rear servo (para
c. Front clutch slipping
c. Repair or replace front clutch
(para 4-8)
d. Rear pump check valve stuck
d. Clean or replace rear pump check
open
valve (para 4-8)
Bands require adjustment.
c. Adjust bands (para 4-6)
26. Transmission will not downshift
Vacuum control solenoid is defective,
Replace, adjust, or connect electrical
requires adjustment or is
lead as applicable (para 4-4)
disconnected electrically.
Section III. GENERAL MAINTENANCE
2-4. General
opening to prevent entry of foreign material. The same
This section contains those repair instructions or
recommendations for cleaning and covering apply when
references thereto that are general in nature to the
access covers or inspection plates are removed. Clean
crane and which would otherwise have to be
and inspect all parts. Be sure all passages and holes are
repeated several times.
open. Cover all parts to keep when installed. Clean the
them clean. Leave new parts in their containers
rust preventive compound from all machined surfaces of
until ready for assembly. Be sure parts are clean
new parts before installing them.
2-5. General Maintenance Instructions
b. Removals and Installations. Unless otherwise
a. Cleanliness. Whenever hydraulic, fuel, or
lubricating oil lines are disconnected,clean the
point of disconnect and the adjacent area. As soon
as the disconnection is made, cap, plug 'r tape the
2-2
specified, all removals should be accomplished using an
adjustable lifting beam. All supporting members (chains
