Graco 224908, Инструкция по установке и список запчастей

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Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
Before servicing this equipment always make sure to
Relieve the Pressure.
Check all possible problems and solutions before
disassembling the pump.
Problem Cause Solution
Pump does not operate Restricted air line, clogged air pas-
sages, or inadequate air supply Clear; see Technical Data on page
26.
Main air valve is closed Open valve.
Air regulator malfunction Repair or replace.
Dirty or worn air motor parts; air mo-
tor leak. Clean and overhaul air motor. See
page 16.
Obstructed fluid hose or dispensing
valve; fluid hose ID is too small. Increase pump air regulator pressure.
Fluid is too heavy; pump is laboring Clean. See page 16.
Fluid has dried on the fluid piston Clean and overhaul air motor. See
page 16.
Pump operates, but in small
strokes Dirty or worn air motor parts; air mo-
tor leak. Clean and overhaul air motor. See
page 16.
Pump operates, but output is low
Restricted air line, clogged air pas-
sages, or inadequate air supply Clear; see Technical Data on page
26.
Dirty or worn air motor parts; air mo-
tor leak. Clean and overhaul air motor. See
page 16.
Obstructed fluid hose or dispensing
valve; fluid hose ID is too small Clear*; use hose with larger ID.
Fluid is too heavy; pump is laboring Increase pump air regulator pressure.
Worn intake valve Service. See page 16.
Pump running too fast Exhausted fluid supply Replace or refill can. p g
Worn intake valve Service. See page 16.
Dirty or worn air motor parts; air mo-
tor leak Clean and overhaul air motor. See
page 16.
Ram does not move up or down Restricted air line, clogged air pas-
sages, or inadequate air supply Clear; see Technical Data on page
26.
Main air valve is closed Open valve.
Air regulator malfunction Repair or replace.
Wiper plate is lodged in container Use air assist valve. See page 13.
Pump does not prime Fluid is too heavy Open pump bleeder valve.
Wiper plate leaks Ram pressure is too high Reduce air pressure to ram. p p
Wiper plate ring is worn Replace.
Leakage past throat packing Worn u-cup packing Replace (wet-cup is not adjustable).
* To determine if the fluid hose or gun is obstructed, relieve the pressure. Disconnect the fluid hose and place a container at the
pump fluid outlet to catch any fluid. Turn on the air just enough to start the pump (about 140–280 kPa, 1.4–2.8 bar [20–40 psi]). If
the pump starts when the air is turned on, the obstruction is in the fluid hose or gun.