Air Motor
SER 323440-4
Alemite, LLC
11
Revision (7-05)
Pump Operation
Bench Test and Prime
With air pressure at zero:
1. Place the pump in the product to be dispensed.
NOTE: Do not allow the pressure to exceed
50 psi (3.4 bar).
2. Slowly supply air pressure to the pump’s motor.
3. Allow the pump to cycle slowly until the system and
product is free of air.
If the pump assembly does not prime, refer to the
Troubleshooting Chart for details.
Stall Test
WARNING
Should leakage occur anywhere within the
system, disconnect air to the motor. Personal
injury can occur.
With air pressure at zero:
4. Attach a control valve to the outlet hose of the pump.
5. Set the air pressure to 100 psi (6.9 Bar).
6. Operate the control valve into a container.
7. Allow the pump to cycle until the system and product
is once again free of air.
8. Shut off the control valve.
• The pump should not cycle.
If the pump cycles more than once or twice an hour,
refer to the Pump SER Service Guide for details.
9. Check the motor for air leakage.
If the motor leaks, refer to the Troubleshooting Chart
for details.
Installation
Additional items that should be incorporated into the
air piping system are listed in Table 3.
Air piping system components specific for bulk grease
pumps are listed in Table 4.
* Although the air motor is lubricated at the factory,
the life of the motor can be extended with the use of a
lubricator.
Part Number
Description
338862
Moisture Separator/Regulator & Gauge Combination
5608-2
Moisture Separator
7608-B
Regulator and Gauge
5908-2
Lubricator *
324170
Muffler
Table 3
Air Line Components
Part Number
Description
5612-2
Moisture Separator
7612-B
Regulator and Gauge
5912-2
Lubricator *
Table 4
Air Line Components Specific for
Bulk Grease Pumps