Shark BT-3530, Инструкция по эксплуатации и каталог запасных частей, Страница: 12 / 33

97-727, 96-721 • REV. 4/06
PRESSURE
W
ASHER T
R
OUBLESHOO
TING GUIDE
12
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
MOTOR WILL NOT
START Usually caused by line trouble, such
as single phasing at the starter
Check source of power. Check overloads,
fuses, controls, etc.
MOTOR
OVERHEATING Overload. Compare actual amps
(measured) with nameplate rating
Locate and remove source of excessive
friction in motor or load.
Reduce load or replace with motor of greater
capacity.
Single phasing Check current at all phases (should be
approximately equal) to isolate and correct
problem.
Improper ventilation Check external cooling fan to be sure air is
moving properly across cooling fins.
Excessive dirt build-up on motor. Clean
motor.
Unbalanced voltage Check voltage at all phases (should be
approximately equal) to isolate and correct
the problem.
Over voltage or under voltage Check input voltage at each phase to motor.
Open stator winding Check stator resistance at all three phases
for balance.
Improper connections Inspect all electrical connections for proper
termination, clearance, mechanical strength
and electrical continuity. Refer to wiring
diagrams.
BEARING
OVERHEATING
Misalignment Check and align motor and driven
equipment.
Excessive belt tension Reduce belt tension to proper point for load.
Excessive grease in bearing Remove grease until cavity is approximately
3/4 filled.
Insufficient grease in bearing Add grease until cavity is approximately 3/4
filled.
Dirt in bearing Clean bearing cavity and bearing. Repack
with correct grease until cavity is
approximately 3/4 filled.
GROWLING OR
WHINING Bad bearing Replace bearing. Clean all grease from
cavity and new bearing. Repack with correct
grease until cavity is approximately 3/4 filled.