TM 5-3810-207-20/TO 36C23-3-37-12
CHAPTER 8
CARRIER MAINTENANCE INSTRUCTIONS
Section I. STEERING ASSEMBLY
270.
General
The carrier hydropower steering gear is a cam and
lever-gear design with a control valve to provide no-lag,
fingertip control. It is a compact semi-integral assembly
with a hydraulic cylinder installed in the linkage to apply
the necessary power for steering.
271.
Hydraulic Steering Pump
a.
Test.
(1)
Disconnect the pressure hose from the
steering valve.
(2)
Insert a pressure gage in the discharge
hose. Pressure should be 700 to 900
pounds per square inch with the engine
idling and wheels against stops.
(3)
Position the pressure 'hose on the
steering valve and secure with the
connector nut.
b.
Removal.
(1)
Tag, disconnect, and drain pump lines.
(2)
Remove the hydraulic pump and drive
belt (pars. 254 and 258).
c.
Cleaning and Inspection.
(1)
Clean all parts with an approved
cleaning solvent.
(2)
Inspect the steering pump for breaks,
leaks, and other damage. Replace
defective pump.
(3)
Inspect the drive belt for breaks, fraying,
and other damage. Replace defective
drive belt.
d.
Installation.
(1)
Install the hydraulic pump and drive belt
(par. 254).
(2)
Adjust drive belt (TM 5-3810-20710).
(3)
Install
pump
lines
and
replenish
hydraulic oil (LO 5-3810-207-20).
272.
Steering Pump Pulley
a.
Removal.
(1)
Remove the steering pump drive belt
(par. 254).
(2)
Remove the steering pump pulley as
instructed on figure 166.
b.
Cleaning and Inspection.
(1)
Clean the pulley with an approved
cleaning solvent.
(2)
Inspect the pulley for breaks, cracks,
and other damage. Replace defective
pulley.
c.
Installation.
(1)
Install the pump pulley as illustrated on
figure 166.
(2)
Install the drive belt (par. 254).
(3)
Adjust the drive belt (TM 5-3810-207-
10).
273.
Steering Pump Reservoir
a.
Removal.
(1)
Remove the cover and filter element
from the reservoir (TM 5-3810-20710).
(2)
Drain the reservoir (TM 54810207-10).
(3)
Remove the steering pump reservoir as
instructed on figure 166.
b.
Cleaning, Inspection, and Repair.
(1)
Clean all parts with an approved
cleaning solvent.
(2)
Inspect all parts for bends, cracks, and
other damage. Replace or repair all
defective parts.
c.
Installation.
(1)
Install the steering pump reservoir as
illustrated on figure 166.
219