Step #6: Are there Dents in the Air
Cylinder?
Yes: Look on the outside of the air
cylinder 61041. Are there any
dents. The smallest dent will stop
the operation of the pump. You
need to replace that part and order
a repair kit as well. Or Contact an
Authorized ATD Service Center.
Also see warning note below on the
use of Hammers!
No: There are no dents or cracks on the
outside. Go to step #7:
Step #7: Any Synthetic Oil?
Has anyone injected marvel mystery oil or any synthetic oil into the air inlet of the
pump? Synthetic Oil will swell the Buna N Packings especially part # 34090. The
Air Motor will not operate and will need to be rebuilt.
Note: Strainer ATD5356
To prevent Blockage in the pump, hose, lubricant lines or control valve with
contaminated grease, or to prevent contaminated grease from entering your
bearings, we suggest the use of a Grease Strainer: ATD5356
Has your Pump been Outside in the
elements? Has water entered the Air
Motor?
Yes: there is a possibility that water has accumulated inside the Air Motor. Over
time this can cause damage to the Air Motor. All pumps are packed at the factory
with a water repellent NLGI #1 grease. Over time with water accumulating inside
the Air Motor, the grease can be flushed out.
Note: FRL
To ensure the proper operation of your Pneumatic pump, we suggest a Filter,
Regulator, Lubricator (FRL) on each Pump OR at the very least a Filter
/Regulator with an automatic dump mechanism on it to purge water out of the air.
Note: Hammer Fix!!
Don’t Bang on the pump with a hammer or blunt instrument. The pumps are
rugged and made for professional and industrial use but are made of Aluminum
and if any parts are dented, it will affect the operation of the pump.
Note: Types of
Foreign Materials:
Some foreign materials such as adhesives, caulks, anything w/ sugar, bubble gum,
abrasive materials can ruin or severely block part # 90554ME. This is a precision
lapped bushing and plunger assembly that can wear excessively when it is
exposed to abrasive materials such as sugar, dirt and sand. If this does occur,
you will probably have to replace part # 90554ME.
Note: Plastic Liner
Issues
If the Grease Drum/Pail has a Plastic Liner and your pump operates but no grease
is delivered, the downtube of the pump could be trying to pick up the plastic liner
and the downtube is blocked:
SOLUTION:
1: You can try reseating the pump by lifting the pump approximately 6-12 inches
above the drum / pail and reseating it on top of the drum / pail.
2: You can try raise the pump up at least 1-2” out of the drum on blocks but might
introduce contamination in the grease with blowing dirt etc…. ; Also you will leave
1-2” of grease in the bottom when you change containers.
3: Install a grease strainer (ATD5356) on the downtube to prevent the liner from
being picked up.
4: In recent years, manufactures have made their liners with a heavy plastic and
this has not been an issue.
Final Warning on a
Live Pump:
If the air is connected to the pump, consider the pump to be live. Do not
attempt to work on the pump or the system without disconnecting the Air
Inlet and relieving pressure in the system, both air pressure and lube
pressure. Make sure there are no live air pockets in the air motor and all air
has been bled from the Air Motor.
Revision: January 23, 2008
