Wright Manufacturing Stander ZK Series, Instruction Manual, Page: 26 / 44

26
WARNING
6 Service and Adjustments
For service documents go to www.wrightmfg.com , select support, then, click service docs tab.
6.1 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 22 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. Lowering the tire pressure below the recommended pressure will
change the pitch of the deck which may require further deck pitch adjustment.
6.2 Height of Cut
Before adjusting the height-of-cut be sure the mower engine is off, and rear tires have
proper air pressure. Check for even tire wear. The height-of-cut can be adjusted the
following way:

Insert the selector pin on the left hand side of the mower to the desired cut height (A) .

While holding the deck lift lever grip to the right of the upright, push down (with thumb)
on the button at the top of the deck lift lever (B) . With the button pushed down, move
the deck lift lever forward to lower the deck or pull back to raise
the deck. When the deck is at the desired height, release the
button and make sure the internal stop pin is fully locked into
place
(C) .
6.2.1 Deck Adjustments
The mower deck can be adjusted for pitch and side-to-side levels. Pitch is the relationship between the
front of the blade and the rear of the blade in regards to height of cut. In most cases, a positive pitch (front
of the blade is lower than the rear of the blade
) of ¼” is the optimum setting. The deck lift rods have been
adjusted at the factory and should not need adjusting (A) . The adjustments can easily be made by using
the threaded deck hangers (B) (deck pitch and side-to-side adjustments) located at the front of the deck
and at the rear of the engine deck. These hangers are connected to the chains that hold the deck.
If you change the deck lift rods above or below the 30.03
” center-center measurement, the deck may not
raise all the way up into the transport position, may change the height of cut to not match the height decal
and will effect deck pitch. Be sure and check the deck height of cut range after any adjustments are made
to the lift rods or deck hangers to ensure that the height of cut adjustments work properly. If unable to
make the adjustments needed to align deck properly, contact your dealer for assistance.
A
B
C
A
Rear Deck
Lift hangers