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Every 500 hours/Yearly
(whichever comes
first) thereafter.
(Every 250 hours/Yearly
if using Mobil 1 15W50
thereafter)
Note: Use only Exmark Part No. 109-4180 for
Summer use above 32°F (0°C) or P/N 1-523541 for
Winter use below 32°F (0°C) (Refer to Transmission
section in Specifications for filter specifications).
1.
Stop engine, wait for all moving parts to stop, and
remove key or spark plug wire(s). Engage parking
brake.
2.
Remove and retain the thigh pad and rear guard.
3.
Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
4.
Use a catch pan when draining the hydro oil.
5.
Place a catch pan under the hydro filter.
6.
Carefully clean area around filter. It is important
that no dirt or contamination enter hydraulic
system.
7.
Unscrew filter to remove and allow oil to drain
from reservoir. Remove clamp and one hose from
the reservoir to fully drain the machine.
Important: Before reinstalling new filter, fill
it with Exmark Premium Hydro oil and apply
a thin coat of oil on the surface of the rubber
seal.
Turn filter clockwise until rubber seal contacts the
filter adapter, then tighten the filter an additional
2/3 to 3/4 turn.
8.
Reinstall the hose and clamp onto reservoir fitting.
9.
Exmark Premium Hydro Oil is recommended
to fill the reservoir. Refer to the chart for an
acceptable alternative:
Hydro Oil
Exmark Premium Hydro
Oil (Preferred)
Mobil 1 15W50
*May need more often under severe conditions.
Service Interval
After first 250 hours
*Every 500 hours/Yearly
thereafter
After first 250 hours
*Every 250 hours/Yearly
thereafter
10.
Fill reservoir as stated in Check Hydraulic Oil
Level.
11.
Loosen filter 1/2 turn and allow a small amount
of oil to leak from the oil filter (this allows air to
be purged from the oil filter and supply hose from
the hydraulic reservoir). Turn filter clockwise
until rubber seal contacts the filter adapter. Then
tighten the filter an additional 2/3 to 3/4 turn.
12.
Start engine and move throttle control ahead to
full throttle position. Disengage parking brake
and move motion control levers forward with
equal pressure, and run for one minute. Shut
down the machine, allow the hydros to cool.
13.
Check the level of the hydraulic oil; refer to
Check Hydraulic Oil Level section.
14.
If either drive wheel does not rotate, one or both
of the charge pumps may have lost their "prime."
Refer to Hydraulic System Air Purge section.
15.
Reinstall the rear guard and thigh pad.
16.
Remove the jack stands.
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.
47
Maintenance
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