DRIVE SYSTEM
7-18 Rev. 000 TX525 Service Manual
Right Hydrostatic Pump Replacement
Right Hydrostatic Pump Removal
Note: Cleanliness is a key factor in a successful
repair of any valve system. Thoroughly clean
all exposed surfaces prior to any type of
maintenance. Cleaning all parts by using
a solvent wash and air drying is usually
adequate. As with any precision equipment,
all parts must be kept free of foreign material
and chemicals. Protect all exposed sealing
areas and open cavities from damage and
foreign material.
Upon removal, all seals, o-rings, and gaskets
should be replaced. During installation, lightly
lubricate all seals, o-rings, and gaskets with
clean petroleum jelly prior to assembly.
Protect the inner diameter of seals and
o-rings from damage during assembly by
covering the shaft machined features with
plastic wrap or equivalent.
1. Raise the machine and set it on jack stands. Refer to
“Lifting the Machine for Service” on page 7-1.
2. Remove the rear access panel (Fig. 1325).
4. Using 3/4” and 1/2” sockets, remove the 7 bolts and
nuts securing the rear frame cover to the frame and
fuel tank bracket. Remove the rear frame cover (Fig.
1327).
Note: The rear of the machine may have to be lifted
to reposition the jack stands so that the rear
frame cover can be removed.
Fig 1325 PICT-4505
Fig 1327 PICT-4259
3. Using a 3/8” socket, remove the 6 screws that
secure the left and right rear cover support panels to
the tower assembly (3 screws per panel). Remove
the panels (Fig. 1326).
Fig 1326 PICT-4504
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