Remove - TM-5-5420-279-230399

TM 5-5420-279-23

Remove

(1)

De-pressurize the hydraulic system. See unit maintenance procedure 5-118.

(2)

Remove launch beam drive cover. See unit maintenance procedure 5-035.

(3)

Remove launch beam drive rear guard see operator's maintenance TM 5-5420-279-10

chapter 10.

(4)

Release rear pinch roller pressure.

(5)

Remove the drive chain (9). See unit maintenance procedure 5-037.

(6)

Note the position of and remove the hydraulic pipes connected to the motor (7).

(7)

Note the position of and remove the pipe connected to the back of the brake unit (10).

(8)

Remove the four nuts (1), bolts (6), flat washers (3), lock washers (2), shim pack (5) and

packer (4), securing the motor and gearbox assembly to the launch beam drive. Discard

the lock washers (2).

(9)

Remove the motor and gearbox assembly to a suitable working surface.

(10)

Drain the gearbox oil. See unit maintenance procedure 5-038.

(11)

Remove and retain the ring of bolts (11) attaching the motor (7) to the gearbox (8).

(12)

If the gearbox is being replaced it will be necessary to remove the drive sprocket. See unit

maintenance procedure 5-040.

(13)

Check the hydraulic pipes for damage.

(14)

Check the drive sprocket for damage.

(15)

Check the motor and gearbox body casing for damage.

(16)

Check all threaded components for damage.

5-143