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MAINTENANCE
Anti-scalp Rollers
Anti-scalp rollers are correctly adjusted when
they are slightly off of the ground when the deck
is at the desired cutting height in the operating
position. Anti-scalp rollers keep the deck in the
proper position to help prevent scalping in most
terrain conditions.
The anti-scalp rollers can be set in three
positions:
• Upper 1-1/2" to 2-1/2" (38.1- 63.5 mm) grass
• Middle 2-1/2" to 4" (63.5-101.6 mm) grass
• Lower 4" to 6" (101.6- 152.4 mm) grass.
The rollers must be approximately 1/4" (6.35 mm)
from the ground.
IMPORTANT INFORMATION Adjust anti-
scalp rollers with the mower on a flat level
surface. To avoid deck damage, the anti-scalp
rollers must not be adjusted to support the
deck.
ZT-3100 Powertrain
Regular external maintenance of the ZT-3100
Powertrain™ should include the following:
1. Check oil level in expansion tanks. When
the engine is cold, the tanks should be at the
FULL COLD level.
2. Inspect the vehicle drive belt, idler pulley(s),
and idler spring(s). Insure that no belt slippage
can occur. Slippage can cause low input
speed to the transmission.
3. Inspect the transmission cooling fan
for broken or bent blades. Remove any
obstructions such as grass clippings, leaves
or dirt.
4. Inspect the park brake and vehicle linkage to
insure proper action and adjustment of the
parking.
5. Inspect the vehicle control linkage to the
directional control arm on the transaxle.
Also, make sure the control arm is securely
fastened to the trunnion arm of the transaxle.
6. Inspect the bypass mechanism on the
transaxle and unit linkage to make sure it
rotates and releases fully.
IMPORTANT INFORMATION Any servicing
dealer attempting a warranty repair must have
prior approval before conducting maintenance
of a Hydro-Gear® product, unless the servicing
dealer is a current Authorized Hydro-Gear
Service Center.
Hardware
Check daily. Inspect the entire machine for loose
or missing hardware.
Cleaning
Regular cleaning and washing, especially under
the mower deck, will increase the machine's life-
span. Make it a habit to clean the machine directly
after use (after it is cooled), before the dirt sticks.
Do not spray water on the top of the mower deck.
Use compressed air to clean the top side of
mower deck. Regularly clean deck and underside
of the deck with normal water pressure. Do not
use a high pressure washer or steam cleaner.
Avoid spraying engine and electrical components
with water
Do not rinse hot surfaces with cold water. Let unit
cool before washing.
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