Mudd-Ox XL - Page 66

66
Hydrostatics Cont.
Return Hose
Figure-5
EE
13. Once again, remove the hydraulic tank oil cap and reinstall oil funnel (B in Figure-1). Reinstall lower operator
seat.
14. With the filters replaced and oil refilled, it’s best to prime the hydraulic system without the engine running.
Remove the fuel pump relay, which is labeled and located on top of the engine (Figure-6). Refer to the Kubota
engine manual for detailed information.
Fuse and Relay Box
Figure-6
15. The engine will no longer pump fuel. One mechanic will hold the starter to continuously crank over the engine.
Another mechanic must watch the hydraulic oil tanks to ensure the oil is being pulled into the system. Note: If
there is fuel in the engine, it may run for a short period of time.
A. If oil level lowers: It’s safe to reverse step #14 by reinstalling the fuel pump relay and continuing on.
B. If oil level does not lower: Shut engine off immediately. Wait a minute, then try again. It may take a few
attempts before oil begins to pull into the system.
16. This step is extremely important to execute perfectly. It’s time to run the Mudd-Ox to flow new oil into the
system and push out the old. (1) mechanic should sit inside the rear occupant area, prepared with new oil. A
2nd mechanic will start the Mudd-Ox and slowly push the control levers partially forward. Just enough to
slowly spin the motors, thus the wheels outside the Mudd-Ox will turn. Only operate engine at idle RPM. While
the machine is operating, the mechanic inside the rear occupant area must monitor the hydraulic tank. As
the oil begins to drain into the hydraulic system, they must continue to fill the tank and maintain a visible oil
level in the sight glass. Note: Moving parts are dangerous. Always take great precaution when near/inside the
operating Mudd-Ox. Ensure the external bucket and oil return line cannot be caught on any moving parts. Do
not let the oil system run dry. This is fatal for the hydraulics.
17. During this time, a 3rd mechanic will continue to monitor the external bucket where the return line is draining
into. The older oil will most likely appear darker in color. Once the oil coming out of the return line is no longer
old, but appears to be new oil, the mechanic operating the Mudd-Ox control levers may return to a neutral
position and properly shut off the machine.
18. The mechanic monitoring the oil tank should verify the oil level is satisfactory, and fill if necessary. Reinstall oil
cap and return line. Remove external bucket and properly dispose old oil.