John-deere GP-2700GH User Manual download pdf (Page 21)

Operator’s Manual 21

Operation

PRIMING THE PUMP

CAUTION: RISK OF UNIT DAMAGE. BE CERTAIN THE NOZZLE

IS NOT CONNECTED TO THE UNIT WHILE PRIMING

THE PUMP. PRIMING ALLOWS MINERAL DEPOSITS TO

BE RELEASED FROM THE SYSTEM WHICH WOULD

OBSTRUCT OR DAMAGE THE NOZZLE ASSEMBLY.

RESULTING IN COSTLY REPAIRS.

1. It is essential to prime the pump on initial start-up and each time the water

supply is disconnected from the unit after initial use.

2. Lay the high pressure hose out to remove any loops. Water ow will constrict

the hose, creating tight loops if the hose is not straight.

3. Securely connect the gun assembly to the high pressure hose.

NOTE: The nozzle assembly should NOT be connected to the gun assembly

at this time.

4. With the gun trigger locked in the “OFF” position, turn the water supply

completely on. Pointing the gun in a safe direction, unlock the gun and

squeeze the trigger.

5. Low pressure water will begin owing from the hose/gun assembly. This

allows the unit to prime and purge any air from the system. The unit is

primed when water ow is uninterrupted by air.

6. Once the unit is primed, release the trigger and lock the gun in the “OFF”

position. Securely connect the nozzle assembly.

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John-deere GP-2700GH User Manual Page 21