Husqvarna ZTH6125A - Manual (Page 13)

13
MAINTENANCE
1. Engine oil level: Check daily with engine cold and on a flat surface. Remove the dipstick and wipe
clean. Reinsert the dipstick all the way. Remove the dipstick and check oil level. If oil level is low
remove oil fill cap and add oil. Use engine manufacturers specifications for type of oil.
2. Pump drive belt compartment: Stop engine and remove key. Tilt seat forward and lift rubber flap.
Clean all debris from inside. Inspect rubber flap for proper fit and replace if needed. NOTE: Cleaning
may need to be done more frequently in dry conditions.
3. Mower blades: Stop engine and remove key. Lift deck into the transport position and inspect blades.
Sharpen or replace as needed. Check daily or more often if needed. The machine requires more
power with dull blades and gives a poor cut. If blades get bent, replace them. Blades shouldn’t have
any notches from hitting objects. The air foil on top of the blade should be sufficient to raise the grass
for cutting. If blades are in good condition, sharpen at an angle of 22 to 28 degrees about 2-1/2
inches in from the tips. Note: After sharpening, check blades for proper balance, if needed correct
balance to prevent excessive vibration.
4. Safety interlock system: Check daily and never operate the mower if this system is not functioning
properly. The starter should crank only when the operator is in the seat, the park brake set, blades off
and the motion control levers in the neutral slots. If the mower starts with any of these controls on or in
an operating position, turn the mower off and repair the system immediately.
5. Hardware: Stop engine and remove key thoroughly inspect the entire machine for any missing or
loose hardware. Check daily.
6. Air cleaner: Stop engine and remove key. Remove plastic cover and loosen wingnut on the air
cleaner. Remove the foam pre-cleaner and wash or replace if needed. Inspect paper filter and replace
if dirty. Check every 25 hours, daily if in very dirty conditions. Fuel efficiency, engine RPM, and
available power goes down rapidly if the air filter is dirty. Prolonged effects could damage the engine.
7. Engine oil: Change oil to manufacturers specifications. Stop engine and remove key. Drain oil
when engine is warm. Thoroughly clean around cap before removing. Remove oil drain cap
from the end of drain hose located at the right rear of unit allow to drain and replace drain cap. Re-
move oil filter and replace. Put a light coat of clean oil on the filter gasket before installing. Fill engine
with oil using manufacturers specifications. The factory uses Quaker State Super Blend 10w-30.
Start engine and idle slowly to allow the oil to recoat the interior of the engine and then inspect for
leaks.
8. Hydraulic oil: Check daily. Stop engine and tilt seat forward. Thoroughly clean around cap. Re-
move cap. Oil level should be 1/4” to 1” below the neck of the tank. If not, add oil.
NOTE: Use 20w-50 motor oil.