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A-1
APPENDIX A: TROUBLESHOOTING
TROUBLE
PROBABLE CAUSE
RECOMMENDED ACTION
Tool runs slowly or not at all.
Air flows only slightly from
exhaust.
Airflow blocked by
accumulation of dirt.
Motor parts jammed with dirt
particles.
Air is escaping through
housing connection that may
have vibrated loose.
1.
Check that all housing bolts are tight. If
not, apply Loc-Tite and retighten.
2.
Pour liberal amount of air tool oil into air
inlet.
3.
Operate tool in short bursts – quickly
reversing rotation back and forth.
4.
Repeat as needed.
5.
Tap motor housing lightly with soft-faced
mallet.
6.
Disconnect air supply – then attempt to free
motor by rotating drive shank manually.
Tool runs and impacts but
exhibits lack of power (will
not open gates that it
previously would).
Back head gasket (See GO-
A13-HA MAINTENANCE &
PARTS MANUAL:
Appendix A, Exploded
View) broken through.
1.
Replace Gasket.
Drive Fittings will not stay on.
Shank pin w/O-Ring is not
being used to secure Drive
Fitting.
1.
Replace Shank pin and O-Ring
(See SECTION XI: ACCESSORIES).
Premature Square Drive wear.
Drive Fitting sockets worn.
1.
Replace worn Drive Fitting.
(See SECTION XI: ACCESSORIES).
Gate Opener gradually losing
power but still runs at full free
speed.
Internal parts are worn or
sticking due to lack of
lubricant.
OIL LUBED:
1.
Check in-line Lubricator sight glass or
presence of air motor oil.
GREASE LUBED:
NOTE: Vibration and heat usually indicate
insufficient grease in the Hammer Case
Assembly. The average greasing interval is six
months. Severe operating conditions may
require more frequent lubrication.
1.
Check for excess grease by rotating Square
Drive by hand. It should turn freely. Excess
grease is usually expelled automatically.
2.
Disassembly is required for greasing.
(See GO-A13-HA MAINTENANCE &
PARTS MANUAL: Disassembly
Instructions).
Gate Opener will not shut-off.
Throttle Trigger stuck or
bent.
Throttle Valve Assembly
broken or out of position.
1.
Lubricate with air motor oil and operate
trigger briskly.
2.
Remove Throttle Valve Assembly and install
new valve body assembly.
Impactor housing bolts
become loose.
Vibration from impacting.
1.
Loctite the bolts and retighten.
