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TONGUE CYLINDER HYDRAULICS, RELIEF VALVE (RV4), AND CHECK VALVE (CV4) REPLACEMENT (Sheet 3 of 4)
SEQUENCE AND LOCKING CYLINDER RELIEF VALVE (RV5 AND RV6) REPLACEMENT (Sheet 1 of 3)

Launcher Hydraulics System M48A5/M60A1 Tank Chassis, Transporting: For Bridge, Armored-Vehicle-Launched; Scissoring Type, Class 60 Page Navigation
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TM 5-5420-228-24
TONGUE CYLINDER HYDRAULICS, RELIEF VALVE (RV4),
AND CHECK VALVE (CV4) REPLACEMENT (Sheet 4 of 4)
13.
Using 1-1/8 inch wrench, install nipple (C) and attached parts as an assembly on tongue
cylinder (N). Aline as shown.
Holding check valve "CV4" (B) with 1-1/8
14.
inch wrench, use 15 inch adjustable wrench
to install and aline relief valve "RV4" (P) as
shown.
Using 1-1/8 inch wrench, install nipple (K)
15.
and attached parts as assembly to relief
valve "RV4" (P).
Holding nipple (J) with 1-1/8 inch wrench,
16.
use 1-1/4 inch wrench to install hose
assembly "CH" (Q).
Using 15 inch adjustable wrench to hold elbow (F), use 1-1/4 inch wrench to connect hose
17.
assembly "CK1" (R) to elbow (F).
Install tongue cylinder flow regulator valve (page 3-115).
18.
Bleed hydraulic system (page 3-72).
19.
Check for hydraulic leaks and correct as necessary.
20.
Service hydraulic reservoir (LO 5-5420-202-12).
21.
Adjust relief valve pressure (page 3-84).
22.
Install tongue cylinder armor (page 3-2 33).
23.
End of Task
TA251500
3-102






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