TM 55-1930-209-14&P-13
3-19.2.2.3.3 Replacement
a.
Control station 1 START/STOP switch.
(1)
Removal.
WARNING
Make sure START/STOP switch is electrically dead before replacing switch by opening
(OFF) circuit breaker P16 on switchboard. Redtag circuit breaker with: "WARNING DO
NOT ACTIVATE. REPAIRS BEING MADE."
(a) Tag and disconnect wires to switch.
(b) Remove mounting hardware.
(c)
Remove switch.
(2)
Installation. Install switch in reverse order of removal in step (1).
b.
Control station 2 START/STOP switch.
(1)
Removal.
(a) Open storage box cover.
(b) Perform steps (a) through (c) in step a.
(2)
Installation.lnstall switch in reverse order of removal in step (1). Check operationally after installation.
3-19.2.2.4
Hydraulic power unit motor controller
WARNING
Make sure hydraulic power unit motor controller is electrically dead before starting repair
or removal. Redtag switchboard circuit breaker P16 with: "WARNING DO NOT
ACTIVATE. REPAIRS BEING MADE."
3-19.2.2.4.1 Cleaning and inspection
a.
Make sure hydraulic power unit motor controller is electrically dead by opening (OFF) switchboard circuit breaker
P16. Redtag circuit breaker with: "WARNING DO NOT ACTIVATE. REPAIRS BEING MADE."
b.
Wipe clean exterior of motor controller with clean rag. Open motor controller door and vacuum clean or clean
inside with electrician's brush. Avoid using solvents for cleaning inside motor controller. Solvents leave a greasy
film on components that may reduce electrical continuity.
c.
Check fuse. Replace if necessary.
d.
Visually inspect for indications of burns, corrosion, loose connections, damaged parts, or chipped paint. Clean
corrosion from contacts and terminals, tighten loose connections, and replace damaged parts. Clean electrical
contacts with silver polish, fine sandpaper, or burnishing tool. DO NOT use emery paper or steel wool. Vacuum
to remove residue. Touch up paint according to TB 43-0144. Do not paint threads or labels.
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