8ą306-934
TROUBLESHOOTING
CHART
WARNING
Pressure
Relief Procedure
To reduce the risk of serious bodily injury, including
fluid
injection, splashing in the eyes or on the skin,
or
injury
from moving parts, always relieve all air and fluid
pressure in the system before checking or repairing
the
ram or any other part of the system
and when shut
-
ting
down the system.
1.
Shut of
f the air to the pump and ram.
2. Open the bleed–type master air valve to relieve
trapped
air.
3.
Shut of
f the ram director valve.
4. T
rigger the gun/dispensing valve to relieve
fluid pressure.
5.
Open all fluid drain valves in the system.
6. Leave
the drain valves open until you are ready to
spray/dispense
again.
PROBLEM CAUSE SOLUTION
Ram won’t raise or lower
Closed air valve or clogged air line
Open, clear
Not enough air pressure
Increase
W
orn or damaged piston
Replace
Director valve closed or clogged
Open, clear
Ram raises or lowers too fast Air pressure too high
Decrease
Air leaks around cylinder
Loose packing nut or worn packings
T
ighten, replace
packing nuts (46)
Fluid squeezes past
Air pressure too high
Decrease
ram plate wipers
W
orn or damaged wipers
Replace
Pump won’t prime properly or
Closed air valve or clogged air line
Open, clear
pumps air
Not enough air pressure
Increase
W
orn or damaged piston
Replace
Director valve closed or clogged
Open, clear
Air director valve dirty
, worn
Clean, service
or damaged
Air director valve won’t hold
Closed air valve or clogged air line
Open, clear
drum down or push plate up
Not enough air pressure
Increase
V
alve passage clogged
Clean
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