Autoquip PLTC-58120, Инструкция по установке, эксплуатации и обслуживанию

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PROBLEM POSSIBLE CAUSE AND SOLUTION
Lift Does Not
Raise. Motor rotation for a 3-phase motor may be reversed. Reverse two motor electrical
leads.
Check for line or hose leak.
Check for low oil in reservoir. Add specified oil as necessary.
Load may exceed rating. See the Specifications section. Remove excess load.
Suction screen may be clogged, starving pump. Remove and clean screen. Drain
and replace oil.
Suction line may be leaking air due to a loose fitting. Tighten as needed.
Breather holes in reservoir fill plug may be clogged. Remove and clean.
Voltage may be too low to run pump with existing load. Check by measuring
voltage at motor terminals, or as near as possible, while pump is running under
load. Inadequate or incorrect wiring can starve motor when source voltage is
ample. Correct as necessary.
Down valve may be energized by faulty wiring or stuck open. Remove solenoid
and check.
Motor may be single phasing. Check wiring, fuses, etc.
Pump may be seized if motor is humming or blowing fuses on overload protection
devices. Remove pump. Pump can be rotated by hand unless seized. Check for
cracks in housing.
Down solenoid valve stem may be bent, causing valve to stick open. Replace
down solenoid valve.
Lift Raises, Then
Lowers Slowly. Down solenoid may not be seating. Remove solenoid coil and check. If lift does
not hold with solenoid coil removed, remove and clean down valve cartridge or
replaced as necessary
.
Oil line, hose, or fitting may be leaking. Check and repair if necessary.
Check valve in pump assembly may not be seating. This is indicated by pump
shaft and motor turning backward on their own with no power applied. Generally,
this condition can be heard. Replace pump assembly.
Lift Lowers Slowly.
Down solenoid is not operating properly due to debris or damage.
Check for pinched tubing or hose. Where pipe is used, check for obstruction in
line.
Thick oil due to low ambient temperatures. Add or replace with lower weight oil
that stays thin in cold conditions (5W-15, etc.)
If foam is visible in tank oil, check for loose connection in suction line between
pump and tank. Tighten connections.