Alemite 7785-MA Service Manual - Page 12

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SER 7785-A5

Priming

With air pressure at zero:

8. Place the pump in the product to be dispensed.

9. Slowly supply air pressure to the pump's motor.

10. 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.

11. Check the motor for air leakage.

If the motor leaks, refer to the Air Motor Service

Guide 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:

12. Attach a control valve to the outlet hose of the pump.

13. Set the air pressure to 100 psi (6.9 Bar).

14. Operate the control valve into a container.

15. Allow the pump to cycle until the system and product

is once again free of air.

16. Shut off the control valve.

• The pump should not cycle.

If the pump cycles slowly (once or twice a minute) or

continuously, refer to the Troubleshooting Chart for

details.

Revision (11-08)

1-800-548-1191-http://[email protected]

Installation

NOTE: The following procedures consider

the pump assembly to be installed onto a

container with a cover.

1. Install the bolts that attach the cover to the pump

assembly.

• Tighten the bolts securely.

2. Place the follower into the container.

3. Press downward and maneuver the follower until

grease appears around its edges and center hole.

• Make sure all air is removed.

4. Install the pump assembly through the follower and

onto the container.

5. Secure the cover and pump assembly to the container.

Additional items that should be incorporated into the

air piping systems are listed in Table 5.

Part Number

338862

Moisture Separator/Regulator & Gauge Combination

5608-2

Moisture Separator

7608-B

Regulator and Gauge

5908-2

Lubricator *

Table 5 Air Line Components

* Although the air motor is lubricated at the factory,

the life of the motor can be extended with the use of a

lubricator.

Alternate Installations

Pump model 7785-A5 is often mounted:

• from either a single- or dual-post hoist

• in bulk grease distribution systems

When either of these type arrangements are employed,

alternate accessory items must be purchased. See Table 6.

Application

Followers

327242

Single-Post Hoist

Dual-Post Hoist

327690

Bulk Grease

* 1-1/2 " NPTF (m)

Table 6 Accessory Items for Alternate Installations

High-Pressure Grease Pump

Description

Adapter Kit

Primer Body

327247

333693*

Alemite, LLC