TM 5-5420-228-24
SCISSORS CYLINDER RELIEF VALVE (RV8) AND FLOW REGULATOR (PCV3) REPLACEMENT
(Sheet 3 of 4)
INSTALLATION:
NOTE
Remove all caps and plugs as necessary during installation.
Before installation, use pipe tape on all male threads. Start
tape on second thread so tape will not enter hydraulic system.
1.
Place relief valve "RV8" (A) in vise.
NOTE
You must install parts in relief valve
"RV8" (A) exactly as shown, or
valve will not install or function
properly.
Using 1-1/8 inch wrench, install nipple (B)
2.
on relief valve "RV8" (A).
Using 1-3/8 inch wrench, install bushing (C)
3.
on nipple (B).
Holding bushing (C) with 1-3/8 inch wrench, use 15 inch adjustable wrench to install flow
4.
regulator "PCV3" (D) on bushing (C) with flow arrow pointing away from relief valve "RV8" (A).
Holding flow regulator "PCV3" (D) with 15 inch adjustable wrench, use 1-3/8 inch wrench
5.
to install bushing (E) on flow regulator "PCV3" (D).
Using 12 inch adjustable wrench, install elbow (F) on relief valve "RV8" (A).
6.
Holding elbow (F) with 12 inch adjustable wrench, use 1-1/8 inch wrench to install adapter
7.
(G) and collar "CG" (H) on elbow (F).
Remove relief valve "RV8" (A) and attached parts from vise and position between welded
8.
support brackets (J) in vehicle.
9. Manually install elbow (K) and collar "CF2"
(L) to relief valve "RV8" (A).
Install adapter (M) and collar "CJ" (N)
10.
in bushing (E).
11.
Holding relief valve "RV8" (A) with 15 inch
adjustable wrench, use 12 inch adjustable
wrench to tighten elbow (K).
Holding bushing (E) with 1-3/8 inch wrench,
12.
use 1-1/8 inch wrench to tighten adapter (M).
Go on to Sheet 4
TA251506