TM-9-2350-311-20-2

TM-9-2350-311-20-2 - Page 516 of 828

TM 9–2350–311–20–2

9–14

Change 2

9–3

ELECTRICAL CONTACT ARM ASSEMBLY — CONTINUED

Cleaning

WARNING

Make sure battery ground cables are disconnected at battery terminals before beginning this proce-

dure. Failure to observe this warning could result in severe burns and electrical shock, resulting in

injury or death.

Manually traverse cab until the electrical contact arm (5) to be cleaned and adjusted is located at the rear of

the vehicle. Traversing electrical contact arm to the rear will make sure that brushes (34) are clear of ring

segment (35) and make electrical contact arm more accessible.

Remove two cap screws (3) and two lockwashers (4) to release ground straps (1) and ground wire (2) of

harness from hull. Remove four cap screws (6), four lockwashers (7), and shims (8). Electrical contact arm

(5) will now come off. Discard lockwashers and shims.

WARNING

Solvents can burn easily, can give off harmful vapors, and are harmful to skin and clothing. To avoid

injury or death, keep away from open fire and use in well-ventilated area. If solvent gets on skin or

clothing, wash immediately with soap and water.

Use cleaning compound to clean brushes (34), electrical holder assembly (23), and ring segment (35). Allow

cleaning compound to dry.

NOTE

Do not tighten four cap screws in step 4 until adjustment.

Install electrical contact arm (5) using four cap screws (6), four new lockwashers (7), and new shims (8).

Install ground straps (1) and ground wire (2) of harness to hull using two cap screws (3) and two new lock-

washers (4).