Engine Won't Crank - Vanguard CPW 125-4-S Series Operation And Maintenance Manual

Engine Won't Crank

Figure 81: Engine Won't Crank Troubleshooting—
numbered callouts reference numbered problem list below
Possible cause
Red emergency stop button (PB1) NOT pulled all the
1
way out.
Automotive style fuse (FU1) blown.
2
Jumper (1J1) on blue terminal strip between terminals
3
#82 and #83 loose or missing.
Loose wires.
4
5 Faulty Stop/Run/Start switch (SS2).
6 Bad starter motor or starter solenoid
7 Engine fault.
8 LS1 inner door switch not closed
9 Low or dead batteries
037-08OP-002D-01
1
037-05-63-308A
Solution
Pull the red emergency stop button (PB1) all the way out
Check and replace with spare fuse of same rating
Check loose connections. Replace missing jumper.
Check wire numbers: #82, #83, #84, #46; the wire at the
starter solenoid on the turbo-side of the genset engine and at
terminal #46.Note: The same wire number can be used on
more than one wire in the same circuit.
Replace defective switch.
Replace genset engine's starter motor.
Refer to The Engine Digital Display unit to determine fault
code. See the Engine Digital Display in the Operation
section of this manual. Refer to the Engine Diagnostic
Trouble Codes; see the appendices at the end of the Weld-
Deck Operation and Maintenance Manual, Weld-Deck
welding package CPW 125-4-S2-4.
Verify inner door closed. If ok, check LS1 wiring and switch
for defects.
Verify 24VDC at the panel Battery Charge Meter (Minimum
9 VDC). Check connections. Check battery charge capacity.
S/N CB50600021 – UP (Weld-deck)
5
(SS2)
2
3, 4
037-05-63-042A
93