Adjustments - Exmark Lazer Z Operator's Manual

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.
5.1.24 Inspect electric clutch gap:
Refer to Section 5.2.12 for inspection and adjustment procedures.
5.1.25 Wheel hub - slotted nut torque specification.
When tightening the slotted nut on the wheel motor tapered shaft:
a) Torque the slotted nut to 125 ft. lbs.
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 523157) between hub and nut.
d) Torque the slotted nut to 125 ft. lbs.
e) Then tighten nut until the next set of slots line up with the cross hole in the shaft.
f) Replace cotter pin.
5.1.26 Fuel Tank – mounting hardware specification.
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.
5.1.27 Thread locking adhesives such as "Loctite 242" or "Fel-Pro, Pro-Lock Nut Type"
are used on the following fasteners:
a) Pump drive sheave set screws.
b) Square head setscrews on Hydro pump control arms.
c) Sheave retaining bolt in the end of engine crankshaft.
d) Setscrews on the Jackshaft sheaves.
Adhesives such as "Loctite RC/609 or RC/680" or "Fel-Pro Pro-Lock Retaining I
or Retaining II" are used on the following:
a) Shoulder bolts connecting the motion control dampener.
b) Fuel tank studs, where studs are inserted into tank.
5.1.28 An anti-seize compound is used on the following locations:
a) Between Jackshaft and sheaves.
b) Between sheaves and cutter housing spindles.
5.1.29 Dielectric grease is used on all blade type electrical connections to prevent
corrosion and loss of contact.

5.2 ADJUSTMENTS

Disengage blade clutch, shut off engine and remove
key before servicing, cleaning or making adjustments.
5.2.1 Cutting Height Adjustment.
a) Stop machine and move drive levers out to neutral lock position.
Service Interval: 250 hrs.
Service Interval: 500 hrs
CAUTION
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