TM 5-5420-228-24
HEU OR EARLY MODEL TONGUE CYLINDER REPAIR (Sheet 4 of 5)
ASSEMBLY:
1.
Remove tape from threads of piston rod (A).
For Early Model: Install new preformed packing assembly (B) on piston rod (A) and push it into tongue cylinder (C).
2.
For HEU: Position packing installation tool (C.1) on piston rod (A). Install new seal pack assembly (B) on piston rod
(A) and push it into tongue cylinder (C). Remove packing installation tool (C.1).
3.
Install new spacer ring (D) and new preformed packing (E) on land ring (F).
4.
Position land ring (F) on piston rod (A) and aline holes with tongue cylinder (C).
5.
Manually install eight screws (G). into land ring (F) and tongue cylinder (C).
6.
Using 1-5/16 inch socket and torque wrench, alternately tighten eight screws (G) to 320-330 lb-ft (435-445 Nm).
7.
Manually install new wiper ring (H) in land ring (F).
8.
Manually install four 10/32 screws (J) in threaded holes (K) of bushing (L).
9.
Using spanner wrench on screws (J), tighten bushing (L) against land rings (F).
10. Manually remove screws (J) from bushing (L).
11. Install new wiper ring (M) on piston rod (A).
12. Install retaining plate (N) on piston rod
(A) and aline holes with bushing (L).
13. Using cross-tip screwdriver, install four new screws (P).
Go on to Sheet 5
