Exmark Lazer Z CT manual Service Interval After First 100 hrs, Then 500 hrs thereafter

b)Locate filter under left rear corner of engine deck.

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

d)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 the filter clockwise until rubber seal contacts the filter adapter then tighten the filter an additional 2/3 to 3/4 turn.

e)Fill reservoir as stated in Section 4.1.10.

f)Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely.

g)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.

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.

4.1.25Wheel hub - slotted nut torque specification

Service Interval: After First 100 hrs.

Then 500 hrs thereafter

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

a)Torque the slotted nut to 125 ft. lbs (169 N-M).

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

c)If more than two threads (0.1”) are showing remove nut and install washer (PN 1-523157) between hub and nut.

d)Torque the slotted nut to 125 ft. lbs (169 N-M)

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

f)Replace cotter pin.

Note: Do not use antiseize on the wheel hub.

4.1.26Fuel Tank – mounting hardware specification.

When installing the nuts onto 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.

4.1.27Thread locking adhesives such as “Loctite 242” or “Fel-Pro, Pro-Lock Nut Type” are used on the following fasteners:

a)Pump drive sheave setscrews.

b)Square head setscrews on hydro pump control arms.

c)Clutch retaining bolt in the end of engine crankshaft.

d)Caster wheel spacer nuts.

e)Fuel tank bulk head fitting nuts.

f)Cutter housing spindle nut

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