Hyundai 60L-7A, Manual

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5-11
GROUP 2 OPERATIONAL CHECKS AND TROUBLESHOOTING
1. OPERATIONAL CHECKS
Check item
Steering wheel
Knuckle
Steering axle
Hydraulic pressure of
power steering
Remove screw coupling from CF port of priority valve and install oil pressure gauge.
Turn steering wheel fully and check oil pressure.
※
Oil pressure : 125kgf/cm 2 (1780psi)
Set rear wheels facing straight forward, then turn steering wheel to left and right.
Measure range of steering wheel movement before rear wheel starts to move.
Range should be 30~60mm at rin of steering wheel. If play is too large, adjust at
gear box.
Test steering wheel play with engine at idling.
Checking procedure
30-60mm
(1.2-2.4 in)
·
Check knuckle visually or use crack detection method. If the knuckle is bent,
the tire wear is uneven, so check tire wear.
·
Put camber gauge in contact with hub and measure camber.
If camber is not within 0
±
0.5
°
; rear axle is bent.
Ask assistant to drive machine at minimum turning radius.
Fit bar and a piece of chalk at outside edge of counterweight to mark line of
turning radius.
If minimum turning radius is not within
±
100mm (
±
4in)of specified value, adjust
turning angle stopper bolt.
Min turning radius(Outside)
·
·
·
·
60L-7A
70L-7A
3315mm(131in)
3360mm(132in)
2. TROUBLESHOOTING
Problem
Steering wheel drags. ·
Low oil pressure.
·
Bearing faulty.
·
Spring spool faulty.
·
Reaction plunger faulty.
·
Ball-and-screw assembly faulty.
·
Sector shaft adjusting screw excessi-
vely tight.
·
Gears poorly meshing.
·
Flow divider coil spring fatigued.
·
Check lockout. Repair.
·
Clean or replace.
·
Clean or replace.
·
Replace.
·
Clean or replace.
·
Adjust.
·
Check and correct meshing.
·
Replace.
cause Remedy
Steering wheel fails to return
smoothly.
·
Bearing faulty.
·
Reaction plunger faulty.
·
Ball-and-screw assy faulty
·
Gears poorly meshing.
·
Clean or replace.
·
Replace.
·
Clean or replace.
·
Check and correct meshing.