ALKOTA E320 - Page 11

TROUBLE POSSIBLE CAUSE REMEDY
4. Excessive,
unusual noise.
A. Defective Pump.
B. Defective motor.
C. Pulleys rubbing.
D. Misalignment of pump & motor
A. See PUMP TROUBLESHOOTING.
B.Call service technician or take engine to
Repair/Warranty station.
C. Adjust shields or pulley(s).
D. Realign pump and engine.
5. .Belts slipping. A. Belts too loose.
B. Excessive Back Pressure.
C. Defective Water Pump.
A. Tighten belt per instructions on
MACHINE MAINTENANCE.
B. See "Excessive Back Pressure" below.
C. See PUMP SERVICE.
6. Excessive Back
Pressure
A. Spray tip built up with lime.
B. Water pump turning too fast.
C. Coil built up with lime.
D. Relief valve defective.
A. Remove and clean, or replace spray tip
with tip specified in the GENERAL section
of MODEL SPECIFICATIONS. Flush
machine per FLUSHING in MACHINE
MAINTENANCE
B. See MODEL SPECIFICATIONS.
C. Delime coil.
D. Remove and replace.
7. Excessive
vibration.
A. Defective Belt.
B. Defective Pump.
C. Defective accumulator
A. Remove and replace using belt specified
in CLEANER EXPLODED VIEW or the
GENERAL section of MODEL
SPECIFICATIONS.
B. See PUMP TROUBLESHOOTING.
C. Recharge/Replace.
8. Pump motor
will not start
(motor does not
hum)
A. No Power.
B. Defective motor starter or
ON/OFF switch.
C. Defective motor.
A. Use a different outlet,check fuses in main
disconnect switch. Replace fuse if blown.
B. Call service technician.
C. Call service technician, or take motor to
Repair/Warranty station.
9. Pump motor
will not start
(motor hums)
A. Pump frozen.
B. Defective motor.
C. Defective water pump.
D. Excessive back pressure
A. Machine must be thoroughly warmed to
above freezing.
B. Call service technician or take motor to
Repair/Warranty station.
C. See PUMP SERVICE.
D. See "Excessive Back Pressure" above.
10. Pump motor
starts slow or
overheats and
stops.
A. Low voltage
B. Excessive back pressure
C. Defective motor
A. See "Low voltage" below.
B. See "Excessive Back Pressure" above.
C. Call service technician, or take motor to
Repair/Warranty station.
11. Pump motor
stops and will
not start.
A. Motor starter "kicked out" (if so
equipped) or thermal overload
tripped.
B. Excessive back pressure.
C. Defective motor.
A. Turn motor starter off to reset, then turn
on, or push thermal overload reset button
on motor.
B. See "Excessive Back Pressure". above.
C. Call service technician, or take motor to
Repair/Warranty station.
12. Low voltage A. Incoming voltage incorrect.
B. Not large enough extension cord.
C. Too long extension cord
A. Have a qualified technician check the
motor terminal voltage. Correct voltage is
in MODEL SPECIFICATIONS.
B. Use an extension cord with amperes or
watts rating as high or higher than that of
the MODEL SPECIFICATIONS.
C. Shorten extension cord.
13. Machine
shocks
operator
A. Machine improperly grounded.
B. Outlet not grounded
A. STOP! Operating machine. Call service
technician.
B. Have properly wired outlet installed.
01-16-04 Z08-02784A Supersedes 02-12-01 Z08-02784A
ELECTRIC MOTOR DRIVEN COLD WATER CLEANERS
CLEANER TROUBLESHOOTING (CONT.)
10