Uline S-20860 Manual Del Usuario página 4

OPERATING ISSUE
Difficulty in moving pump
handle
Low pressure and resistance
during pumping
Leaks from end of spray wand
Leaks from inside cylinder
Leaks under cap
Leaks from shut-off valve
Leaks from hose
Pressure relief valve sticks
Air leak – air coming out
between halves of the pump
support
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TROUBLESHOOTING
CAUSES
Dirty cylinder wall
O-ring on piston swollen
(not cleaned properly)
Tank cap not tight
No lubricant on piston/cylinder
Chemical in cylinder
Damaged o-ring in pressure
relief valve
Worn or damaged o-ring in
shut-off valve
Worn or damaged o-ring in
pump piston
Worn or damaged o-ring in
shut-off valve
No lube on piston/cylinder
Worn or damaged umbrella
valve
Damaged or missing gasket
Screw cap not tight
Worn, damaged or loose
fittings, lack of lubrication
Tank cap not tight
Worn, damaged or loose fittings
Lack of lubrication or
contaminated relief valve
assembly
Gasket twisted or lacking
lubrication
Tank lip damaged
1-800-295-5510
uline.com
RECOMMENDATIONS
Remove piston. Clean, grease
and replace.
Replace o-ring. Grease.
Tighten cap.
Lubricate with heavy grease.
Replace umbrella valve.
Replace o-ring.
Replace o-ring.
Replace o-ring.
Rebuild shut-off valve.
Lubricate piston, o-ring and
cylinder.
Replace umbrella valve at
bottom of cylinder.
Replace gasket.
Tighten tank cap.
Tighten fittings and replace
worn parts, disassemble and
lubricate o-rings.
Tighten tank cap.
Tighten fittings and replace
worn parts.
Clean and lubricate pressure
relief valve assembly.
Straighten gasket and
lubricate with grease.
Repair or replace tank.
0521 IS-20860