TM 5-3805-254-34
9-3.
POWER DIVIDER DIFFERENTIAL AIR SHIFT CHAMBER MAINTENANCE (Con’t).
c.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles and
gloves, and use only In a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO
NOT breathe vapors. DO NOT use near open flame or excessive heat. The solvent’s flash point is
1000F-138°F (38°C-590C). If you become dizzy while using cleaning solvent, immediately get fresh
air and medical help. If solvent contacts eyes, Immediately wash your eyes and get medical aid.
1.
Clean all metal parts with dry cleaning solvent, then dry thoroughly with clean, dry rags.
2.
Inspect air shift chamber halves, pushrod, pushrod plate, spring, and clamp for cracks, bends, or breaks. Replace
if defective.
3.
Inspect diaphragm for any holes or tears. Replace if defective.
4.
Inspect two studs (21) of air shift housing for damage. Replace if damaged.
d.
ASSEMBLY
1.
Install new strainer plate (24) into air shift chamber half (13).
2.
Press new drive seal (15) into air shift chamber half (13).
3.
Install elbow (5) in air shift chamber half (7).
4.
Install pushrod (16) through drive seal (15) and into air shift chamber half (13). Install pushrod plate (9) to end of
pushrod.
5.
Aline match-marks and assemble diaphragm (8) and air shift chamber halves (7 and 13).
6.
Install clamp (12), two bolts (11), and nuts (10) to secure air shift chamber halves (7 and 13).
7.
Install adjusting stud (18) and nut (17) to air shaft housing (6). Torque nut to 43-56 lb.-ft. (58-76 N•m).
8.
Position spring (19) in air shift housing (6) and loosely position new gasket (14) and air shift chamber halves (7
and 13) to air shift housing as an assembly.
9.
Install snapring (20) into groove of pushrod (16) closest to air shift chamber halves (7 and 13).
10.
Aline match-marks and install air shift chamber halves (7 and 13) to air shift housing (6) with two washers (22) and
nuts (23).
9-35
