Mudd-Ox XL - Hydrostatics

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Hydrostatics
Mudd-Ox XL is driven by a hydrostatic system. There are (2) inline pumps that feed (2) motors, one per each side
of the vehicle.
Oil Inspection
On the right side of the engine compartment is an oil tank. It has a clear sight tube “A” for checking oil level. It
must be filled to the middle of the sight tube +at all times with AW-46 (Figure-1).
Oil Level
Figure-1
Hose Inspection
Hydraulic oil is transferred through high pressure lines. These route along both sides of the vehicle. Inspect each
line for any signs of cracks, tears or rips. If there are any signs of damage, replace the hose immediately. Then
complete Oil Change before operating.
Hoses
Figure-2
Oil Change
The oil filter must be replaced after the first 500 hours of operation, and a full oil change every 3,000 hours after
with AW-46 oil. Note: Always contact your Mudd-Ox dealer for proper oil filters, as they are specially designed
for use with the hydrostatic system. It is important to never rush the process, and to verify all steps have been
completed with great care. Not following these specific directions can lead to ruined hydraulic parts and expen-
sive replacement. This should only be attempted by very experienced mechanics with a background in hydraulic
systems. At least (3) mechanics are recommended for these steps. Thoroughly read and understand the steps
before attempting.
1. See Lower Operator Seat Removal and Engine Cover Removal under Accessing the Mudd-Ox.
2. See Raising the Mudd-Ox under Jack Points using the wooden block method. It must be raised high enough
that the tires can drive forward and backwards without dragging the ground.
BB
AA