Exmark 312 用户手册
Maintenance
6. Inspect the filled tank valve and fitting openings
for dirt, debris, or damage.
7. Inspect the tank hose connection fitting for
damaged or missing o-rings.
8. Make sure the replacement tank type and size
match the tank specification decal.
9. Mount the tank by aligning the slot with the
mounting tab as shown in Figure 14
Figure 14
1.
Tank slot
3.
LPG Tank
2.
Mounting tab
Important: Valves and gauges may not
function properly if the LPG tank is not
installed correctly.
function properly if the LPG tank is not
installed correctly.
10. Latch the bracket and make sure the tank is
securely fastened to the mower.
11. Carefully connect the fuel hose; the threads are
LH. Make sure the hose is not kinked.
12. Slowly open the fuel valve to equalize the pressure
in the tank. If the fuel valve is opened too quickly,
the pressure relief valve is equipped with a back
pressure check valve that will shut off the fuel
supply. If this happens, close the fuel valve
completely and wait five seconds. Slowly open
the fuel valve.
the pressure relief valve is equipped with a back
pressure check valve that will shut off the fuel
supply. If this happens, close the fuel valve
completely and wait five seconds. Slowly open
the fuel valve.
13. Check for leaks as described in the Inspection
section in Safety.
Change Hydraulic System
Filter
Filter
Service Interval: After the first 250 hours
Every 500 hours/Yearly
(whichever comes
first) thereafter
(Every 250 hours/Yearly if
using Mobil 1 15W50)
(whichever comes
first) thereafter
(Every 250 hours/Yearly if
using Mobil 1 15W50)
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).
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. Engage parking brake.
2. Carefully clean area around filter. It is important
that no dirt or contamination enter hydraulic
system.
system.
3. Unscrew filter to remove and allow oil to drain
from reservoir.
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.
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.
filter adapter, then tighten the filter an additional
2/3 to 3/4 turn.
4. Fill reservoir as stated in Check Hydraulic Oil
Level.
Exmark Premium Hydro Oil is recommended.
Refer to the chart for an acceptable alternative:
Refer to the chart for an acceptable alternative:
Hydro Oil
Change Interval
Exmark Premium Hydro
Oil (Preferred)
Oil (Preferred)
500 Hours
Mobil 1 15W50
250 Hours
5. 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.
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.
6. Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
enough to allow drive wheels to turn freely.
7. 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 15) may have lost
their “prime”. Refer to Hydraulic System Air
Purge section.
main pump as shown in Figure 15) may have lost
their “prime”. Refer to Hydraulic System Air
Purge section.
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