Exmark Lazer Z HP Operator's Manual page 34

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5.2.3
5.2.4
d) Set anti-scalp rollers to top holes or remove them completely for this
adjustment.
e) Raise the deck to the 4.5" height position and take as much force as
possible off of the two large deck lift springs by loosening the nuts at the
front of each spring. See Fig. 7.
f) Lower the deck to the 1-1/2" height position. Place two 1-5/16" thick
blocks under the rear edge of the cutting deck skirt; one on each side of
the cutting deck. Place a 1-1/8" block under the center front edge, but
not under the anti-scalp roller brackets.
g) Loosen the two (2) bottom chain bolts in slots at the rear of the cutting
deck. Loosen four (4) nuts which secure front swivels (two per side), until
front chains are loose and front of deck is supported by the 1-1/8" block.
Do not loosen front chain hardware.
h) When hardware is loosened, remaining tension in the large support
springs will tend to rotate the deck lift handle up, out of the 1 1/2"
position. Press down on the rear deck support arm (as shown in Fig. 7)
to firmly return the deck lift handle to the 1 1/2" position. DO NOT push
on deck lift handle. While continuing to press down, take the slack out of
the rear chains and tighten hardware at the bottom of the rear chains.
Downward pressure may now be released.
i) On left side, adjust front swivel using the locking nut behind the swivel
until the front chain is tight and all slack is removed from linkage. Do not
lift front of deck off 1-1/8" block. Secure front swivel using locking nut in
front of swivel. Repeat for right side.
SWIVEL ADJUSTMENT
SPRING COMPRESSION ADJUSTMENT
j) Recheck that blocks fit just snugly under the deck skirt and that the
tension on all the chains are approximately equal. Make sure all chain
attachment bolts are tight.
k) Raise deck lift lever to the 4.5" cutting height position (also transport
position, See Fig 5. Adjust spring compression until proper distance is
obtained between the two washers (See Fig 7) by turning the nut at the
front of each spring. Lock nuts in position with jam nuts.
l) Reposition anti-scalp rollers and tighten securely.
NOTE: When above adjustments have been made, the front of
the deck will be slightly lower than the rear of the deck.
Pump Drive Belt Tension.
Self-tensioning - No adjustment necessary.
Deck Belt Tension.
Self-tensioning - No adjustment necessary.
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FIG. 7
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