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 176 of 750

Change 3

2-100.1

TM 5-5420-228-24

Symptom-7.1

HEU BRIDGE DOES NOT RETRACT FROM VERTICAL POSITION OR DOES NOT

RETRACT SMOOTHLY.

First Technician (Operator’s Station)

•

Start engine.

•

Move ball valve to “LAUNCH” position.

•

Set engine speed at 1800 rpm.

•

Launch bridge (TM-10).

•

Shut engine off.

•

Move ball valve to “TRAVEL” position.

Both Technicians (Launcher)

•

Remove overhead cylinder armor (page 3-223).

First Technician (Operator’s Station)

•

Start engine.

•

Move ball valve to “LAUNCH” position.

•

Set engine speed at 1800 rpm.

•

Cycle overhead cylinder control lever.

Second Technician (Launcher)

•

Visually check overhead cylinder hydraulic lines and

fittings for leaks, crimping, or damage.