Fuses/Circuit Breakers; Theory Of Operation; Maintenance - prime mover smx45 Master Service Manual

Electric walkie low-lift pallet truck
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Fuses/Circuit Breakers

Fuse F50

1. Theory of Operation

The keypad and electronic tiller arm card (ETAC) circuit FU50
fuse is 10 Amps. The main ON/OFF switch circuit fuse FU51
is 10 Amps. The fuses are located on the contactor panel.
10A, Fuse Keypad and ETAC, part number 25275-
12 (supplied with main harness)
10A, Fuse Main ON/OFF, part number 25275-12
(supplied with main harness)
110A, Power Circuit Breaker, part number 301890-
003

2. Maintenance

Examine the fuse for signs of overheating, discoloration,
cracking, or other physical damage. Check for blown fuse
through the fuse window. If fuse is damaged replace it. To
test a fuse, remove or isolate it from the electrical circuit. Do
this by removing the fuse from the truck or by removing all the
connections from one side of the fuse. Use an ohmmeter set
to Rx1 scale and measure the resistance across the fuse.
The resistance should be less than 1 ohm.
Master Service Manual
2006-08-08
F-code
Section
PT
S5.5
Fuses/Circuit Breakers
Version no
T-code
001
SMX
Fuse F51
C-code
5390
229

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