8
306926
Troubleshooting
NOTE:
Refer to the separate instruction manuals
which are supplied with this sprayer, and the manuals
which are supplied with any accessories you added,
for complete operation, troubleshooting and repair
instructions.
NOTE:
Check all possible problems and solutions
before disassembling the unit.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure
on page 6.
NOTE: Relieve the pressure
before checking or
servicing the equipment.
Problem
Cause
Solution
Will not spray
Insufficient air supply
See performance chart on page 9.
y
Closed or clogged air regulator, valve,
supply line, etc.
Open, clear.
Obstructed spray tip, valve, or hose
Clear, use larger tip.
Worn or damaged pump parts
See manual 306818 or 306821.
Valve will not stop pump operation Clogged fluid intake filter
Clean.
Exhausted cleaning solution supply
Refill.
Worn or damaged pump parts
See manual 306818 or 306821.
Valve will not stop fluid spray
Incorrect valve adjustment
Adjust; see manual 307010.
y
Obstructed or worn valve stem or
seat
Clear, replace; see manual 307010.
Fluid leaking from valve at needle
Closed or clogged air regulator, valve,
supply line, etc.
Open, clear.
Worn needle packings or loose pack-
ing nut
Tighten; see manual 307010
Fluid will not come from pump
Insufficient air supply
See performance chart on page 9.
(hose removed)
Closed or clogged air regulator, valve,
supply line, etc.
Open, clear.
Obstructed spray tip, valve, or hose
Clear, use larger tip.
Clogged fluid intake filter
Clean.
Exhausted cleaning solution supply
Refill.
Worn or damaged pump parts
See manual 306818 or 306821
Pump operating, but output low
Obstructed spray tip, valve, or hose
Clear, use larger tip.
g,
Exhausted cleaning solution supply
Refill.
Worn or damaged pump parts
See manual 306818 or 306821
Fluid leaking from valve handle
Spray valve swivel packings worn
Replace; see manual 307010
