Landa PE Serie Manual De Instrucciones página 15

PE SERIES PRESSURE WASHER
PROBLEM
MOTOR WILL NOT
START
MOTOR OVERHEATING
BEARING
OVERHEATING
GROWLING OR
WHINING
TROUBLESHOOTING
POSSIBLE CAUSE
Usually caused by line trouble, such
as single phasing at the starter
Overload. Compare actual amps
(measured) with nameplate rating
Single phasing
Improper ventilation
Unbalanced voltage
Over voltage or under voltage
Open stator winding
Improper connections
Misalignment
Excessive belt tension
Excessive grease in bearing
Insufficient grease in bearing
Dirt in bearing
Bad bearing
LANDA PE • REV 10/02
OPERATOR'S MANUAL
SOLUTION
Check source of power. Check overloads,
fuses, controls, etc.
Locate and remove source of excessive
friction in motor or load.
Reduce load or replace with motor of greater
capacity.
Check current at all phases (should be
approximately equal) to isolate and correct
problem.
Check external cooling fan to be sure air is
moving properly across cooling fins.
Excessive dirt build-up on motor. Clean motor.
Check voltage at all phases (should be
approximately equal) to isolate and correct the
problem.
Check input voltage at each phase to motor.
Check stator resistance at all three phases for
balance.
Inspect all electrical connections for proper
termination, clearance, mechanical strength
and electrical continuity. Refer to wiring
diagrams.
Check and align motor and driven equipment.
Reduce belt tension to proper point for load.
Remove grease until cavity is approximately
3/4 filled.
Add grease until cavity is approximately 3/4
filled.
Clean bearing cavity and bearing. Repack with
correct grease until cavity is approximately 3/4
filled.
Replace bearing. Clean all grease from cavity
and new bearing. Repack with correct grease
until cavity is approximately 3/4 filled.
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