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 135 of 750

2-80.4

Change 3

Check bridge piping, hydraulic lines and fittings

for leaks or damage.

5

First Technician (Operator's Station)

x

Start engine.

x

Move ball valve to “LAUNCH” position.

x

Set engine speed at 1800 rpm.

x

Cycle scissor cylinder control lever into retrieve

and launch positions.

Second Technician (Bridge)

x

Visually check bridge piping, hydraulic lines

and fittings for leaks, crimping or other

damage.

TM 5-5420-228-24

DETAILED TROUBLESHOOTING PROCEDURE

LAUNCHER OPERATION – HYDRAULICS

(Continued)

Symptom-3.1

YES

NO

x

Replace defective hydraulic lines

or fittings (TM 5-5420-203-14).

6

Are bridge piping or hydraulic lines and fittings

leaking or damaged?