TM-5-5420-203-14

BRIDGE, ARMORED VEHICLE LAUNCHED, SCISSORING TYPE CLASS 60 & CLASS 70 ALUMINUM, 60 FOOT SPAN; FOR M48A5 AND M60 LAUNCHER

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE

JUNE 1991

TM-5-5420-203-14 - Page 173 of 298

TM 5-5420-203-14

Table 3-1. Troubleshooting - CONT

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

12. BRIDGE WILL NOT LIFT FROM LAUNCHED POSITION.

Step 1. Check all hydraulic quick-disconnects for obstructions.

Disconnect, clean, and reconnect quick-disconnects.

Step 2. Check hydraulic lines/hoses for loose connections and/or leaks.

Tighten as required. Repair leaks or replace defective part.

Step 3. Check hydraulic levels of launcher.

Add hydraulic fluid as necessary.

13. BRIDGE RAISES FROM THE GROUND, BUT STOPS.

Step 1. Check for loose or leaking hydraulic connections.

Reconnect hydraulic connections.

Tighten loose connections.

Replace defective lines or hoses.

Step 2. Check hydraulic fluid level.

Add hydraulic fluid as required.

Step 3. Check output of hydraulic pump on launcher.

Perform repairs as required.

14. BRIDGE WILL NOT RAISE TO FULL VERTICAL POSITION.

Step 1. Check for loose or leaking hydraulic connections.

Reconnect hydraulic connections.

Tighten loose connections.

Replace defective lines or hoses.

Step 2. Check hydraulic fluid level.

Add hydraulic fluid as required.

Step 3. Check output of hydraulic pump on launcher.

Perform repairs as required.

15. BRIDGE WILL NOT LOWER TO BRIDGE SEAT.

Step 1. Check outrigger arms, cylinders, etc for obstruction.

Remove obstruction.

Step 2. Check alignment of bridge to bridge seat.

Reposition bridge on bridge seat.

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