3-S4
ZD21N-EC, ZD21-EC, ZD28-EC, WSM
FRONT AXLE
4. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
Adjusting Front Axle Pivot
1. Lift up and securely block the front of the machine.
2. Measure the clearance (A) between the front axle (3) and front
axle support (2).
3. If the measurement exceeds the allowable limit, remove the set
spring (5) and adjust the end play by slotted nut (1).
(When reassembling)
• When fastening the center pin (4), tighten the nut (1) so that
the front axle may be oscillated smoothly by hand.
W1011206
Tightening torque
Center pin lock nut
(Slotted nut)
40 to 80 N·m
4.08 to 8.16 kgf·m
29.50 to 59.00 ft-lbs
Front axle end play (A)
Factory spec.
0 to 0.2 mm
0 to 0.008 in.
Allowable limit
0.5 mm
0.02 in.
(1) Slotted Nut
(2) Front Axle Support
(3) Front Axle
(4) Center Pin
(5) Set Spring
(6) Plain Washer
(A) Front Axle End Play
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