10-37
SECTION 10 –
MISCELLANEOUS
TROUBLESHOOTING
Problem
Possible Cause
Suggested Remedy
Engine will not crank
• Dead battery
• Poor battery connections
• Starter or starter relay
• Blown fuse in engine electric
box
• Battery Disconnect Switch in
the OFF position
• Parking brake not engaged
• Recharge or replace battery
• Clean and tighten connections
• Test (rebuild or replace)
• Check/replace fuse
• Turn Battery Disconnect
Switch to the ON position
• Engage parking brake
Engine will not start
• Fuel tank empty
• Clogged fuel filter(s)
• Cold weather
• E-Stop Switch is engaged
• Low starter speed
• Blown fuse in engine box
• Fill fuel tank
• Replace fuel filter(s)
• Refer to the engine
manufacturer’s operation
manual for cold weather
starting
• Disengage E-Stop Switch
• Check starter and battery
• Check/replace fuse
Engine overheats
• Engine overload
• Dirty radiator core/grille screen
• Faulty radiator cap
• Fan malfunction
• Faulty thermostat
• Low coolant level
• Reduce load
• Remove foreign material and
clean all items
• Replace radiator cap
• Check fan speed
• Replace thermostat
• Refill to proper level with
recommended coolant
Engine misfires
(runs uneven/low power)
• Water in fuel
• Dirty air cleaner element
• Poor grade of fuel
• Fuel tank vent clogged
• Clogged fuel filter(s)
• Drain, flush, replace filter, fill
system
• Replace air cleaner element
• Drain system, change to a
higher fuel grade
• Open fuel tank vent (in cap)
• Replace fuel filter(s)
Engine knocks
• Low oil level in crankcase
• Cold engine
• Add oil to full mark
• Allow proper warm-up period,
refer to engine manufacturer’s
operation manual
Solution Pump will not prime
• Low water level in pump
• Air leak in suction line
• Solution tank valve closed
• Clogged or kinked vent line
• Ensure solution tank is not
empty (solution pump is self-
priming)
• Inspect and tighten all fittings
in suction line
• Open solution tank valve, allow
air to leave the system
• Inspect vent line for blockage
or kinking
Содержание UpFront STS 16
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