RELAX MECHANISM - STRUCTURAL ARM (SLIDE FRAME)

TM 5-5420-279-23

6 - 041

RELAX MECHANISM - STRUCTURAL ARM (SLIDE FRAME)

This task covers:

a. Remove

b. Install

INITIAL SETUP:

Tools Required

Personnel Required

Tool Kit, General Mechanic's,

Two

Automotive (GMTK)

Equipment Conditions

Materials Required

Launcher disconnected from vehicle

Thread locking compound, loctite 243

Vehicle switched off and battery shutoff

switch in the off position

Remove

(1)

Disconnect launcher from vehicle. See operator's manual TM 5-5420-279-10.

(2)

Depressurize hydraulic system. See unit maintenance procedure 5-118.

(3)

Remove two rear relax cylinders (10). See unit maintenance 5-092.

(4)

Disconnect the electrical cables to the relax mechanism limit switches (3).

(5)

Remove the two relax mechanism shoot bolts (4). See unit maintenance procedure 5-094.

(6)

Remove the bolts securing the mechanical stops (5) on the slide support (6).

(7)

Remove the mechanical stops (5).

(8)

Attach a crane to the structural arm (slide frame) (1) and support it's weight.

(9)

Slide the structural arm (slide frame) (1) towards the rear of the vehicle over the slide

support.

(10)

Remove the arm structural (slide frame) (1).

(11)

Remove the bolts (8) securing the slide support to the vehicle chassis.

(12)

Remove the slide support complete with spring pins (7).

(13)

Check all threaded components for wear and damage.

(14)

Check the slide wear pads. See unit maintenance procedure 5-093.

(15)

Check the limit switches (3). See unit maintenance procedure 5-094.

(16)

Check the ball joint assembly (2). See unit maintenance procedure 5-095.

(17)

Check the structural arm (1) for wear and damage.

(18)

Check the slide support (6) for wear and damage.

(19)

Check all welds for cracking or corrosion.

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