TM 5-5420-227-24
TONGUE CYLINDER HYDRAULICS, RELIEF VALVE (RV4),
AND CHECK VALVE (CV4) REPLACEMENT (Sheet 1 of 4)
PROCEDURE INDEX
PROCEDURE
PAGE
Removal
Install at ion
TOOLS: 1-1/8 in. open end wrench
12 in. adjustable wrench
15 in. adjustable wrench
1-3/8 in. open end wrench
Vise
1-1/4 in. open end wrench
SUPPLIES:
Pencil
Drip pans
Pipe tape (It em 19, Appendix D)
Rags (Item 12, Appendix D)
Caps and plugs (assorted sizes)
Masking tape (Item 18, Appendix D)
REFERENCE:
PRELIMINARY PROCEDURES:
Remove tongue cylinder armor (page 3-226)
Relieve hydraulic pressure (page 3-65)
Remove tongue cylinder flow regulator (page 3-108)
1.
Holding nipple (A) with 1-1/8 inch wrench, use 1-1/4 inch wrench to disconnect hose
assembly "CH" (B) from nipple (A).
Holding elbow (C) with 15 inch adjustable wrench, use 1 -1/4 inch wrench to remove hose
2.
assembly "CK 1" (D) from elbow (C).
3.
Using 1-1/8 inch wrench, remove nipple (E) and attached parts as an assembly from relief
valve " RV4 (G).
4.
Holding check valve "CV4" (F) with 1-3/8 inch wrench, use 15 inch adjustable wrench to
remove relief valve "RV4" (G) from check valve "CV4" (F).
5.
Using 1-1/8 inch wrench, remove nipple (H) and its attached parts as an assembly from
tongue cylinder (J).
TA170319
Go on to Sheet 2
3-93