Exmark Turf Tracer Operator's Manual page 28

IMPORTANT: Make sure the negative battery cables are disconnected and
the battery charger used for charging the battery has an output of 16 volts and
7 amps or less to avoid damaging the battery (see chart below for
recommended charger settings).
Voltage
Reading
12.6 or greater
12.4 – 12.6
12.2 – 12.4
12.0 – 12.2
11.7 – 12.0
11.7 or less
5.1.9 Check hydraulic oil level.
Service Interval: 40 hr.
a) Stop engine and wait for all moving parts to stop.
b) Clean area around hydraulic reservoir cap and remove cap.
c) Check hydraulic reservoir and if necessary fill the reservoir to the
appropriate level with Mobil 1 15W-50 synthetic motor oil. Replace
hydraulic reservoir cap and tighten until snug. Do not overtighten.
NOTE: The baffle is labeled "HOT" and "COLD". The oil level varies with
the temperature of the oil. The "HOT" level shows the level of oil when it is
at 225°F (107°C). The "COLD" level shows the level of the oil when it is at
75°F (24°C). Fill to the appropriate level depending upon the temperature
of the oil. For example: If the oil is about 150°F (65°C), fill halfway
between the "HOT" and "COLD" levels. If the oil is at room temperature
(about 75°F (24°C)), fill only to the "COLD" level.
5.1.10 Change hydraulic system filter.
Service Interval: After First 250 hrs, then yearly thereafter.
Note: Use only Exmark P/N 1-513211 for Summer use above 32° F (0° C) or
P/N 1-523541 for Winter use below 32° F (0° C). (Refer to Section 2.6.2 for
filter specifications)
a) Place unit on a level surface. Stop engine, wait for all moving parts to
stop, and remove key.
b) Carefully clean area around filter. It is important that no dirt or
contamination enters the hydraulic system.
c) Unscrew filter to remove and allow oil to drain from reservoir.
IMPORTANT: Before re-installing new filter, fill it completely with Mobil 1 15W-
50 and apply a thin coat of oil on the surface of the rubber seal. Turn filter
clockwise until rubber seal contacts the filter adapter. Do not tighten yet.
d) Fill reservoir as stated in Section 5.1.9.
e) 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.
f) Raise the rear of the machine up onto jack stands high enough to raise
the drive wheels off of the ground. Run machine to allow any other air to
be purged from the hydraulic system and recheck the oil level.
g) If either drive wheel does not rotate, one or both of the charge pumps
(located on the top of the main pump as shown in Figure 6) may have lost
their "prime". Refer to Section 5.1.11.
Percent Maximum
Charge Charger Settings
100% 16 volts/7 amps
75 – 100% 16 volts/7 amps
50 – 75% 16 volts/7 amps
25 – 50% 14.4 volts/4 amps
0 – 25% 14.4 volts/4 amps
0% 14.4 volts/2 amps
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Charging Interval
No Charging Required
30 Minutes
1 Hour
2 Hours
3 Hours
6 Hours or More