TM 9-2330-246-14
4-78. LANDING GEAR AND DRIVE UNIT REPLACEMENT (LATE MODEL).
This Task Covers:
c.
Installation
Removal
Cleaning and Inspection
Initial Setup:
Materials/Parts:
Equipment Conditions:
Semitrailer coupled to towing vehicle with landing
One locknut
Tools/Test Equipment:
Two spring pins
Z General mechanic's tool kit
Fourteen Iockwashers
REMOVAL
a.
1.
Remove two nuts (4), Iockwashers (3), and screws (2). Remove brace (31) from mounting bracket (1) and leg
assembly (26). Discard Iockwashers.
Remove two nuts (23), Iockwashers (22), and screws (21). Remove diagonal brace (20) from chassis and leg
2.
assembly (26). Discard Iockwashers.
Remove four screws (10), Iockwashers (9), and sleeves (5) securing leg assembly (26) to chassis. Discard
3.
Iockwashers.
From front position of leg assembly (26), remove two screws (19) and Iockwashers (18) securing trunnion
4.
assembly (17) to chassis. Discard Iockwashers.
Remove lower two screws (24) and Iockwashers (25). Withdraw leg assembly (26) toward center of semitrailer
5.
until crankshaft (6) clears chassis. Remove leg assembly. Discard Iockwashers.
Remove two nuts (16), Iockwashers (15), and screws (11). Remove drive unit (8) from leg assembly (26).
6.
Discard Iockwashers.
.Remove locknut (14), flatwasher (1 3), and screw (1 2). Remove coupling (7) and crankshaft (6) from drive unit
7.
shaft. Discard locknut.
Remove two spring pins (28) and washers (30). Remove two wheels (29) and axle (27) from leg assembly (26).
8.
Discard spring pins,
CLEANING AND INSPECTION
b.
1.
Clean mud and dirt from all exposed surfaces with water and a stiff brush.
2.
Check operation of gears. If defective, replace entire drive unit.
Check all parts for cracks, chipped edges, or breaks. Replace all defective parts.
3.
4-186