Hydraulic System
Maintenance
Check Hydraulic Oil and
Tank Level
Service Interval:
Every 40 hours
1.
Stop engine and wait for all moving parts to stop,
and remove key. Engage parking brake.
2.
Wait until the machine cools before checking the
hydraulic oil.
3.
With the hopper empty, tip the hopper forward.
4.
Clean area around oil overflow tank and remove
cap. Oil level should be at the FULL COLD line;
if not, add hydraulic oil. Replace tank cap and
tighten until snug. Do not overtighten.
Change Hydraulic System
Filter and Fluid
Service Interval:
After the first 100 hours
Every 400 hours or yearly, whichever
comes first thereafter
(Every 250 hours/Yearly if using Mobil 1 15W-50
thereafter)
1.
Stop engine, wait for all moving parts to stop,
and remove key. Engage parking brake.
2.
Carefully clean area around the filter. It is
important that no dirt or contamination enter
hydraulic system.
3.
Place a catch pan under each hydro filter.
4.
Remove and retain the oil filter covers on each
of the transaxles. Remove and discard the
O-ring from the covers.
5.
Allow the oil to drain. Remove and discard the
filters from the transaxle housings.
Install a new O-ring onto the filter cover and
reinstall the cover. Torque to 51-65 N•m
(450-580 in-lb).
6.
Remove the top oil fill vent port plug and fill until
it reaches the oil fill vent port. Reinstall the vent
port plug and continue to fill as stated in
Hydraulic Oil and Tank Level (page 51)
.
g395183
Figure 45
1.
Oil fill vent port plug
2.
Hex plug
Hydro Oil
Service Interval
Toro Hypr-Oil 500
After first 100 hours
*Every 400 hours thereafter
Mobil 1 15W-50
After first 100 hours
*Every 250 hours thereafter
*May need more often under severe conditions.
7.
Remove the catch pan and properly dispose of
hydro oil and filter according to local codes.
Note:
Do not change hydraulic system oil (except for
what can be drained when changing filter), unless it is
felt the oil has been contaminated or been extremely
hot.
Changing oil unnecessarily could damage hydraulic
system by introducing contaminates into the system.
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 described in
Oil and Tank Level (page 51)
.
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
and
above for the respective
51
