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14
Service and Adjustments
Tire Maintenance and Pressure
Excessively worn tire tread is dangerous on all hills.
Replace drive tires with less than 3/32” of any tread
groove left. Use tires with the tread pattern
recommended by Wright Mfg., Inc. only. Keep the
tire pressure in the drive tires between 18 and 24
psi. Higher pressures will cause the tires to have
less traction which will force you to go slower and
with less safety and give you a harder ride. Front
Casters are equipped with non-pneumatic tires and
do not required any air. They do not have any tread
but should be replaced when excessively worn.
Height-of-Cut
Before adjusting the height-of-cut be sure the mower
blades are not spinning, and all four tires have
proper air pressure. Check for even tire wear. The
height-of-cut can be adjusted the following ways:
• Pull the deck lift lever on the right hand side of the
mower towards the rear of the mower until it clicks
once into the locked transport position. Then set
the mower blade height with the selector pin on
the left hand side of the mower. Once the proper
height setting is set on the left, pull back on the
deck lift lever on the right hand side and then
lower the lever towards the front of the machine
until it stops at the set height of cut.
Deck Adjustments
The mower deck can be adjusted for pitch and side-
to-side lever. Pitch is the relationship between the
front of the deck and the rear of the deck in regards
to height of cut. In most cases, a positive pitch (front
of the deck lower than the rear of the deck) of ¼” is
the optimum setting. These two adjustments can
easily be made by using the deck lift rod assemblies
attached to the front deck arms and the threaded
deck hangers located at the rear of the deck frame.
These hangers are connected to the chains that hold
the deck. Adjust the rear deck hangers (by using a
socket through the hole above the toe area of the
platform) to achieve a ¼” pitch. These hangers are
right-handed threads. If you raise any of these
settings above the factory setting, the deck may not
raise all the way up into transport position. Be sure
and check the deck height of cut range after any
adjustments are made to these hangers to ensure
that the height of cut adjustments work properly. If
unable to make the adjustments needed by only
using these hangers, contact your dealer for
assistance.
Belt Tension Adjustment
The pump drive belt is self-adjusting, and requires
no adjustment, just replacement. The blade drive
belts are self-adjusting also and require no
adjustment, just replacement.
Deck Lift Spring Adjustment
To adjust deck spring tension, tighten or loosen the
eye-bolt Nylock jam nut located in the front tank
bracket. If tightening for more lift assist make sure
not to over tighten creating the deck to hop over
rough terrain.
Spring platform Adjustment
The factory setting is both springs set at the most
forward position. The more rearward the spring
position, the stiffer the platform gets. Adjustment will
be to preference of feel. The two adjustment springs
should at all times, be positioned next to each other
not one forward or back more than the other. To
adjust, loosen each spring retaining bolt from the top
just enough to slide it, then tighten with impact
wrench. The nut may spin using hand wrench.
NOTE, do not loosen too much, if the nut falls off,
the foot platform will have to be removed to reinstall.
There is an extra hole for a third spring for operators
heavy enough to bottom out the duel spring stock
set up.
Oil Cooler Screen Removal and Cleaning
Your Stander ZK is equipped with an oil cooler, the oil
cooler debris screen will need to be cleaned several
times a day. Clean more often in bush hog
conditions. To clean, “STOP ENGINE” lift thigh pad
for access, either wipe screen or remove screen for
cleaning. To remove screen, lift and rotate spring
locks to free the screen. The screen is bowed to
WARNING