Hamilton Waterjet HT900

Place a suitably sized container below the JHPU Tank Drain Plug.

Remove the drain plug and let the oil flow into the container.

Refit the drain plug and tighten.

Fill the JHPU to the Max mark on the dipstick with the correct grade of oil.

Discard the waste oil in accordance with current regulations.

Use the oil filler hole to suck oil from the reservoir using an 'Oil Retrieval System'.

Visually inspect the system hoses after the first 5 hours of operation and then every 1000 hours.

Wear and chafing caused by excessive vibration.

Recondition or repair as necessary.;

Filler/Breather Removal and Cleaning

Remove the Filler/Breather from the JHPU Reservoir

Rinse the Filler/Breather in white spirits

Filler/Breather Inspection and Replacement

Does the Filler/Breather look damaged?

Replace the Filler/Breather if it looks damaged

Has the Filler/Breather been in use for 5000 operating hours or one year?

Replace the Filler/Breather if it has been in use for 5000 operating hours or one year

Visual Inspection of Feedback Sensors

Inspect all feedback sensors for the following issues

Is there any loose or damaged connection found?

Replace the sensor if a fault is suspected

Correct Belt tension is achieved when a load of 2.8 kg applied to each Belt at mid span causes a deflection of 3 mm.

Re-tensioning is required when a load of 1.9 kg or less causes the same 3 mm deflection.

To check belt tension use a tension gauge, or as a guide:

Grip one of the Belts at mid point and attempt to twist 90º.

If the Belt rotates beyond 90º, re-tensioning is required.

If the Belt does not rotate to 90º, then the tension is too tight. Re-adjust the Belt tension.

Over tightened V-Belts will cause reduced JHPU Bearing life.;