Allmand Brothers TLB6235 Tractor - Manual (Page 32)

32
STEERING
Most steering problems can be corrected if the problem is properly defined. The entire
steering system should be evaluated before removing any components. The steering
control unit is generally not the cause of most steering problems. The following is a list of
steering problems along with possible causes and suggested corrections.
D - HYDRAULIC SYSTEM (continued)
Hydraulic System Pressures:
Steering Circuit 1500 p.s.i.
Main circuit 2400 p.s.i.
Hydraulic System Flows:
Main circuit 8 g.p.m.
(Main circuit flow determined by R.P.M.)
P R OB LE M P OS S IB LE C AU S E C OR R E C TION
Overloaded s teering ax le Reduce the load
Leak ing or k inked load
s ens ing signal line
Correct
W orn m echanic al link age Repair or replac e
B ending of link age or
c y linder rod
Repair or replac e
Loos e c y linder pis ton Repair or replac e
S evere wear in s teering
orbitrol
Repair or replac e
DRIFTS -V E E RS
S LOW LY IN ONE
DIRE CTION
W orn or dam aged s teering
linkage
Replac e link age and
align front end
W A NDE RING,
V E HICLE W ILL
NOT S TA Y IN A
S TRA IGHT LINE
S LOW S TE E RING,
HA RD S TE E RING
OR LOS S OF
P OW E R A S S IS T
Replace pum p
Replace the relief valve
W orn or m alfunc tioning
pum p
M alfunctioning relief valve
allowing s y s tem pres s ure
to be too low
PROBLEM POSSIBLE CAUSE CORRECTION
NO LOADER LIFT
OR BUCKET
ROOLBACK
Inadequate pressure
Inspect, clean or
replace relief valve
Cold hydraulic fluid
Warm hydraulic fluid by
running engine
Low engine R.P.M.
Move throttle control to
fast position to
increase R.P.M.
TRACTOR
LOOSES DRIVE
AND AUXILARY
POWER
Hydraulic components my
be loose from back of
engine
Inspect input shaft and
flywheel plate for
damage. Replace parts
if needed
INAPPROPRIATE
LIFT SPEED