Husqvarna Z448 Manuel D'utilisation page 26

4. Start the engine and apply fast idle speed. Refer
To start the engine on page 19 .
to
5. Slowly move the control levers forward and
rearward approximately 5 or 6 times. When air
is removed from the hydrostatic system, the
hydraulic oil level will decrease.
6. Set the throttle control to idle speed. Refer to
Throttle control on page 11 .
7. Engage the drive system. Refer to
and engage the drive system on page 18 .
8. Slowly move the control levers forward and
rearward for 5 or 6 times.
9. Stop the engine.
10. Do a check of the hydraulic oil level and fill
hydraulic oil if it is necessary.
11. If it is necessary, do the above steps again until
all air has been removed from the hydrostatic
system. When the product operates correctly,
all air has been removed from the hydrostatic
system.
To do maintenance on the
hydrostatic transmission
CAUTION:
are to do warranty repairs must have
an approval before maintenance of
a hydrostatic transmission, unless the
servicing dealer is a current approved
servicing center for the brand of
transmission being serviced.
• Do a check of the oil level in the expansion
tanks. If the engine is cold, make sure that the
tanks are at the FULL COLD level.
• Examine the drive belt, idler pulleys and idler
springs. Make sure that the drive belt has traction
and that the tension is correct.
Refer to Lubrication
Lubricate the grease nipple on the pivot axle
A
with a grease gun.
Lubricate the grease nipple on the wheel
B
axle with a grease gun.
Lubricate the grease nipple with a grease
C
gun.
Always use good quality grease. Always use
recommended oil, refer to
31 .
26
To disengage
Servicing dealers that
Technical data on page
• Examine the transmission cooling fan for broken
and bent blades.
• Remove grass, leaves and dirt.
• Examine the parking brake and vehicle linkage to
make sure that they operate correctly.
• Examine the vehicle control linkage to the
directional control arm on the transaxle.
• Make sure that the control arm is correctly
attached to the trunnion arm of the transaxle.
• Examine the bypass mechanism on the transaxle
unit linkage to make sure that it rotates and
releases fully.
Lubrication, general information
• Remove the ignition key to prevent accidental
movements during lubrication.
• Clean the area before you lubricate a part on the
product.
• Use oil when you lubricate with an oil can.
• When you lubricate with grease, use a chassis
or ball bearing grease that prevents corrosion.
Remove unwanted grease after lubrication.
• Lubricate 2 times a week if you operate the
product daily.
• Do not spill lubricant on the drive belts or the
grooves of the belt pulleys. If you do spill, clean
with alcohol. If the friction between the drive belt
and the pulley is not sufficient after you clean
with alcohol, replace the drive belt.
CAUTION:
other petroleum products to clean drive
belts.
Lubrication schedule
(Fig. 2)
Interval
Each
Mont Year-
25
hly ly
hours
X
X
X
To lubricate the front wheels
Note:
Use a grease gun when you lubricate the
front wheels.
Do not use gasoline or
Each Each Each
50 100 400
hours hours hours
2237 - 002 - 22.03.2024