Exmark LZ27KC604 Change Fuel Filter, Change Hydraulic System Filter, Thread Locking Adhesives

Maintenance

Change Fuel Filter

Service Interval: As required

A fuel filter is installed between the fuel tanks and the engine. Replace when necessary.

Replacement Filters

Kohler Kohler P/N 2405010

Change Hydraulic System Filter

Service Interval: After the first 250 hours

Yearly thereafter

Note: Use only Exmark Part No. 109-4180 for summer use above 32°F (0°C) or Part No. 1-523541 for winter use below 32°F (0°C).

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Raise seat.

3.Carefully clean area around filter. It is important that no dirt or contamination enter hydraulic system.

4.Unscrew filter to remove and allow oil to drain from reservoir.

Important: Before reinstalling new filter, fill it 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, then tighten the filter an additional 2/3 to 3/4 turn.

5.Fill reservoir as stated in Check Hydraulic Oil Level section.

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.

7.Start engine and move throttle control ahead to full throttle position. Move the speed control levers to the full speed and run for several minutes. Shut down machine and recheck oil level.

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.

Wheel Hub - Slotted Nut Torque Specification

Service Interval: After the first 100 hours

Every 500 hours thereafter

When tightening the slotted nut on the wheel motor tapered shaft:

1.Torque the slotted nut to 125 ft-lb (169 N-m).

2.Check distance from bottom of slot in nut to inside edge of hole. Two threads (0.1 inch) or less should be showing.

3.If more than two threads (0.1 inch) are showing remove nut and install washer (P/N 1-523157) between hub and nut.

4.Torque the slotted nut to 125 ft-lb (169 N-m).

5.Then tighten nut until the next set of slots line up with the cross hole in shaft.

6.Replace cotter pin.

Note: Do Not use anti-seize on wheel hub.

Fuel Tank — Mounting Hardware Specifications

Service Interval: As required

When installing the nuts on the fuel tank studs, fully tighten the nyloc nut and back off 1/2 turn. This allows for normal fuel tank expansion and contraction with changes in temperature and fuel levels.

Thread Locking Adhesives

Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners:

•Pump drive sheave set screws.

•Square head setscrews on Hydro pump control arms.

•Sheave retaining bolt in the end of engine crankshaft.

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