TM-5-5420-228-24

LAUNCHER HYDRAULICS SYSTEM M48A5/M60A1 TANK CHASSIS, TRANSPORTING: FOR BRIDGE, ARMORED-VEHICLE-LAUNCHED; SCISSORING TYPE, CLASS 60

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL

AUGUST 1985

TM-5-5420-228-24 - Page 523 of 750

E

TM 5-5420-228-24

HEU OR EARLY MODEL TONGUE CYLINDER REPLACEMENT (Sheet 5 of 6)

CAUTION

Use care when attaching sling and when

positioning tongue cylinder (E) to not

damage attached fittings.

NOTE

If necessary, use spreader when attaching

sling and lifting device to tongue cylinder

(E).

7.

Position sling around tongue cylinder (E) and

attach lifting device.

WARNING

Make sure sling is routed under hydraulic

lines and around tongue cylinder (E) so that

it cannot slip. Personnel could be injured if

cylinder slips during installation.

8.

Raise tongue cylinder (E) into position and

aline mounting hole with boom (F).

9.

Have two technicians aline tongue cylinder (E)

while third technician inserts pin (C).

10.

Using snap ring pliers, install two retaining

rings (G).

NOTE

•

For

HEU

model,

install

tongue

counterbalance valve, hoses, and fittings

(page 3-204.11), and then go to step 22.

For Early model, go to step 11.

•

Before installation, use pipe tape on all

threads, Start tape on second thread so

tap will not enter hydraulic system.

Remove all cap and plugs as necessary

during installation.

11.

Manually start nipple (H) and attached parts in tongue cylinder (E) by hand.

TA251629

12.

Using 1-1/8 inch wrench, tighten nipple (H) and aline parts as shown.

13.

Using adjustable wrench, install adapter elbow (J).

14.

Using 1-14 inch wrench, install hose assembly (K) on elbow (J) and adapter (L).

Go on to Sheet 6

3-238

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