Air Lock Procedure - Graco Lube Pro 24Z020 Instructions Manual

Installation

Air Lock Procedure

Refer to F . 1, page 6, for the following instruction.
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An air lock occurs when a bubble or pocket of air pre-
vents the normal flow of the lubricant.
NOTICE
Running the pump dry will cause an air lock. To pre-
vent an air lock, do not run the pump without lubricant.
Always refill the pump before it is empty.
If an air lock occurs:
1. Refill the reservoir to the full level (Fill Reservoir,
page 8).
2. Relieve pressure following the Pressure Relief
Procedure, page 11.
3. Disconnect the lubricant supply line (G) from the
pump outlet (E) (F . 6).
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4. Open the bleed-type master air valve (F, page 6).
5. Run the pump a few strokes until oil, free of air,
comes out of the pump outlet (E) (F
• It may take up to 20 the pump strokes to expel the
air from the pump and deliver a continuous flow of
oil. This depends upon the viscosity of the lubricant
and temperature.
• Allow a minimum of 5 seconds ON time for the for-
ward stroke and 5 seconds OFF time for the return
stroke.
10
F . 6
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6. Connect the pump outlet (E) to the lubrication line
. 6).
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F . 7
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(G) (F . 7).
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G
E
G
E
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