Landa SEA 2.8/1000, Руководство оператора

Страница: 14 / 16

14
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
PUMP RUNNING
NORMALLY
BUT PRESSURE
LOW ON
INSTALLATION
Pump sucking air Check water supply and possibility of air.
Check valves sticking Check and clean or replace if necessary.
Unloader valve seat faulty Check and replace if necessary.
Nozzle incorrectly sized Check and replace if necessary.
Worn piston packing Check and replace if necessary.
FLUCTUATING
PRESSURE
Valves worn Check and replace if necessary.
Blockage in valve Check and clean if necessary.
Pump sucking air Check water supply connections.
Worn piston packing Check and replace if necessary.
Insufficient water Check filter and hose for breakage.
PRESSURE LOW
AFTER PERIOD
OF NORMAL USE
Nozzle worn Check and replace if necessary.
Suction or delivery valves worn Check and replace if necessary.
Suction or delivery valves blocked Check and clean if necessary.
Unloader valve seat worn
Check and replace if necessary.
Unloader adjusted improperly
Call local Landa dealer. Tampering with the factory
setting may cause personal injury and/or property
damage and will void the manufacturer's warranty.
Worn piston packing Check and replace if necessary.
Bypass valve within unloader
is obstructed or leaking
Remove and clean bypass cartridge.
PUMP
NOISY
Air in suction line
Check water supply and connections on suction
line.
Broken or weak suction
or delivery valve spring
Check and replace if necessary.
Foreign matter in valves Check and clean if necessary.
Worn bearings Check and clean if necessary.
Excessive temperature of water Reduce to below 140°F.
PRESENCE OF
WATER IN
PUMP OIL
Oil seal worn Check and replace if necessary.
High humidity in air Check and change oil twice as often.
Piston packing worn Check and replace if necessary.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Check and replace if necessary.
O-Ring plunger retainer worn Check and replace if necessary.
OIL DRIPPING
FROM PUMP
Oil seal worn Check and replace if necessary.
EXCESSIVE
VIBRATION IN HIGH
PRESSURE HOSE
Irregular functioning of the pump
valves
Check and replace if necessary.
Obstruction in filter Clean inlet filter.
MOTOR WILL
NOT RUN
Motor overload
Push in the overload button located on the motor
(single phase) or the overload button on the
magnetic start switch (three phase).
Step down transformer fuses Check fuses and voltage. Replace if necessary.
Coil of magnetic starter defective
Replace coil after the timer and unloader switch
have been tested.
MACHINE WILL NOT
TURN ON WHEN
SWITCH IS PUSHED
Timer is defective
Join wires 15 and 16 together on timer. If machine
works, replace timer.
Landa SEA MS Operator’s Manual 9.801-720.0 - AJ