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Hydraulic System Air Purge
Air must be purged from the hydraulic system when
any hydraulic components, including oil filter are
removed.
1.
Stop engine and wait for all moving parts to
stop. Raise the rear of the machine up onto jack
stands high enough to raise the drive wheels
off the ground.
2.
Check oil level as stated in Check Hydraulic
Oil Level section.
3.
Start engine and move throttle control ahead
to full throttle position. Move the speed control
lever to the middle speed position and place the
drive levers in the "drive" position.
4.
Open the drive wheel release on each pump.
5.
With the machine running, slowly stroke the
drive levers from forward to reverse several
times. Then, retighten the drive wheel release
valves. Slowly stroke the drive levers from
forward to reverse several times.
6.
If either drive wheel still does not rotate, stop and
repeat steps
4
and
pump. If wheels rotate slowly, the system may
prime after additional running. Check oil level as
stated in Check Hydraulic Oil and Tank Level
section.
7.
Allow the machine to run several minutes
after the charge pumps are "primed" with drive
system in the full speed position. Check oil level
as stated in Check the Hydraulic Oil Level
section.
8.
Check hydro drive linkage adjustment as stated
in Hydro Drive Linkage Adjustment section in
Adjustments.
5
above for the respective
Maintaining the Chassis
Check for Loose Hardware
Service Interval: Before each use or daily
1.
Stop engine, wait for all moving parts to stop,
and remove key. Engage parking brake.
2.
Visually inspect machine for any loose hardware
or any other possible problem. Tighten hardware
or correct the problem before operating.
53
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