Adjustments - Exmark Laser Z Operator's Manual

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 shaft.
f) Replace cotter pin.
5.1.28 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.
5.1.29 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) Fuel tank studs, where studs are inserted into tank.
5.1.30 An anti-seize compound is used on the following locations:
a) Between Jackshaft and sheaves.
b) Between sheaves and cutter housing spindles.
c) Between the bearings and the cutter housing spindles.
5.1.31 Dielectric grease is used on all blade type electrical connections to prevent
corrosion and loss of contact.

5.2 ADJUSTMENTS

IMPORTANT: Disengage blade clutch, shut off engine and remove key before
servicing, cleaning or making any adjustments to the unit.
5.2.1 Cutting Height Adjustment.
a) Stop machine and move drive levers out to neutral lock position.
b) Disengage blades.
c) Raise the deck lever to the transport position (also the 5" cutting height
position). See Fig 9.
For Kohler 26 HP EFI units the deck can be raised by pulling the deck lever
up and/or by pushing on the deck lift assist lever.
NOTE: When changing cutting height positions, always come to a
complete stop and disengage the mower blades.
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