Description:

For A&V waterjet pump, we recommend changing hydraulic fluid yearly, the hydraulic oil type is #46.

Steps:

1. Open the back panel, use a 10mm Allen key to lose the plug red circled in the picture below, then the oil will by drained by gravity .

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      Or open the top cover of the oil reservoir, use an oil suction pump remove the old hydraulic oil. (notice don’t drop the seal rubber inside the reservoir)

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2. Refill the tank with 46 hydraulic oil.

3. Degassing of the hydraulic pump, in the front of the pump, there is a Rexroth Hydraulic pump, on the back of the Rexroth hydraulic pump, there is a degassing cap, use 10mm Allen key lose that cap, and wait a while until hydraulic oil flow out.

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4. Re-tighten the cap, and take a test run. Any abnormal sounds contact us.