Purging The Hydraulic System - Toro Z Master Z597 Service Manual

10. Install rear wheel and wheel lug nuts and tighten.
11. Engage parking brake, torque the wheel hub nut
to 125 ft-lbs. (169 Nm) (Fig. 161). Install cotter key
through the nut and motor wheel shaft.
Note: Re-torque nut at 100 hours, and every 500
hours thereafter. Washer 1-523157 can be
added under nut to keep cotter pin engaged
with nut castellation.
Fig 161
12. Check the park brake and adjust park brake if
necessary. Refer to Adjusting the Parking Brake,
page 3-22.
13. Reconnect the battery negative cable.
14. Check the hydraulic fluid in the reservoir tank.
Add oil if necessary. Air will need to be purged in
the system. Follow the procedures on Purging the
Hydraulic System, page 4-13.
Z Master Z597 Diesel Service Manual
HYDRAULIC SYSTEM

Purging the Hydraulic System

The hydraulic system is self bleeding; however, it may
be necessary to bleed the system if fluid is changed or
after work is performed on the system.
1. Raise the machine so wheels are off the ground and
support with jack stands (Fig. 162).
DSC-2128
2. Start the engine and run at low idle speed. Slowly
engage the motion control lever. If the wheel does
not rotate immediately, it may be necessary to spin
the wheel by hand to start purging air that is trapped
in the system (Fig. 163).
Fig 162 DSC-2352
Fig 163
DSC-2353
4
4-13