TM 9-2330-238-14
5-29. FOLDING SIDE DOOR MAINTENANCE (M447, M447C, M749, AND M750).
This Task Covers:
a.
Upper Folding Side Door Removal
d.
Lower Folding Side Door Removal
b.
Upper Folding Side Door Repair
Lower Folding Side Door Repair
c.
Upper Folding Side Door Installation
Lower Folding Side Door Installation
Initial Setup:
Tools/Test Equipment:
Personnel Required: Three
l General mechanic’s tool kit
l Hoist
l Sling
l Two jackstands
I
a.
UPPER FOLDING SIDE DOOR REMOVAL I
1.
Open upper and lower folding side doors (para 2-14).
2.
Support lower folding side door with jackstands.
3.
Using sling and hoist to support upper folding side door (4), disconnect wire rope assembly from
counterbalance assembly (para 4-61, 4-62, or 4-63).
4.
Remove eight screws (6) from pivot assemblies (5) and upper folding side door (4).
5.
Remove 52 screws (10) from hinge (12), door seal (11), and van body. Remove upper folding side door (4) from
van body with hoist.
6.
Remove 52 screws (10), hinge (12), and door seal (11) from upper folding side door (4).
b. UPPER FOLDING SIDE DOOR REPAIR I
1.
Inspect three sash assemblies for cracks or breaks. If defective, replace sash assembly (para 5-24).
2.
Inspect seals (1) and retainers (2) around edge of upper folding side door (4) for cracks, breaks or tears. If
defective, remove rivets (3) as required and replace damaged parts.
3.
Replace any badly damaged parts. Straighten bent metal parts if possible.
I c.
UPPER FOLDING SIDE DOOR INSTALLATION I
1.
Position door seal (11) and hinge (12) in place on upper folding side door (4) and install 52 screws (10).
2.
Using chain and hoist, raise upper folding side door (4) into position on van body.
3.
Install 52 screws (10) in hinge (12), door seal (11), and van body.
4.
Aline mounting holes in pivot assemblies (5) and upper folding side door (4) and install eight screws (6).
5.
Connect wire rope assembly to counterbalance assembly (para 4-61, 4-62, or 4-63). Remove chain, hoist, and
jackstands.
6.
Close upper and lower folding side doors (para 2-14).
5-82
