Service Manual

4-4 Z Master Z597 Diesel Service Manual

HYDRAULIC SYSTEM

9. Using a 12-point 3/8” socket, loosen the two set

screws located on the hydro pump hub Slide the

hydrostatic pump hub and pulley off the hydrostatic

pump shaft. Remove the key on the hydrostatic

pump shaft (Fig. 127).

Fig 127 DSC-2089

10. Loosen and remove the two bolts and nuts retaining

the hydrostatic pump to the frame (Fig. 128).

Fig 128 DSC-2091

Fig 130 DSC-2094

12. Remove the hydrostatic pump from the frame (Fig.

130).

Fig 129 DSC-2092

11. Cut the two cable ties that hold the fuel line and the

wiring harness (Fig. 129).

13. For service work on the hydrostatic pump refer to the

Hydro-Gear Service Manual, Form 492-4789.