TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 Change 2 9–11 6 Remove four machine screws (27) securing two electrical contact brushes (12) and two ground electrical contact brushes (18). 7 Remove two electrical contact brushes (12), two ground electrical contact brushes (18), and eight springs (28) from electrical contact holder (29). 8 Remove six machine screws (30), four machine screws (31), and five electrical contact brushes (32) with attached leads (33) from electrical contact holder (29). NOTE Perform step 9 only if wires are broken or defective. 9 Unsolder electrical lead (33) from electrical contact brush (32). c. Assembly NOTE • When reassembling electrical contact brushes (12 and 18), adjust to same height as contacts. • Apply one drop of sealing compound to thread of screws. • Use rosin core solder only. For soldering instructions, refer to para 2–16. • Use wiring schematic as a guide for installation of electrical leads. 1 If electrical lead (33) has been unsoldered for replacement, solder new electrical lead to electrical contact brush (32). 2 Install four machine screws (31) and six machine screws (30) on five electrical brushes (32) with attached leads (33), alining wires in grooves to electrical contact holder (29). 3 Install four springs (28) and two electrical contact brushes (12) with two machine screws (27) into electrical contact holder (29). 4 Install four springs (28) and two ground electrical contact brushes (18) with two machine screws (27) into electrical contact holder (29). 18 12 33 30 27 28 28 32 29 100 GND 100 GND 41 42 43 L1 L2 31