Maintenance Instructions
LUBRICATION
63
Gear Axle Lubrication
• The gear axle oil lubrication is SAE E.P. 80W-90
(API GL-5) gear lube.
• Check the axle oil level
after
every 100 hours
of
operation by removing the oil level plug. If additional
oil is needed, remove the breather vent on top of ax le
and fill until oil is at the level plug.
• Change axle oil
every 1000 hours
or
two (2)
years.
Hydrostatic Transmission Fluid
Checking Hydrostatic Transmission Fluid Level
The hydrostatic transmissions are sealed units
and do not need to be opened to check the fluid
level.
Hydrostatic fluid level should be checked
ev-
ery 25 hours
of machine operation. It is preferable
to
check the fluid when the fluid is cold.
Check
fluid levels as follows:
IMPORTANT: Removing or breaking the seal on
the hydrostatic reservoir cap within the first
1000 hours will VOID THE TRANSMISSION WAR-
RANTY.
1. Park the mower on a
level surface.
Stop the
engine and wipe dirt and contaminants from
around the base of the reservoir to better see
the
COLD
mark.
2. The level of the oil can be seen through the side
of the opaque reservoir
(DO NOT REMOVE
RESERVOIR CAP);
using a light next to the
reservoir will help make the level more visible.
Reservoir Cap
Cold Level
Air Bleed Plug
Transmission Reservoir and
Air Bleed Plug Location
3. The reservoir has a fluid level
COLD
mark. The
reservoir
oil level should ALWAYS be at or
slightly above the COLD mark.
4. If the fluid is below the
COLD
mark (or the trans-
mission is not performing properly),
contact
your local dealer. Attempting to add fluid or
service the transmission may VOID THE
TRANSMISSION WARRANTY.
NOTE: Loosening the air bleed plug
on top of the
transmission can be used to verify a low oil condition
in the transmission. As the plug is loosened (
DO
NOT
completely remove plug), oil will seep out if the
transmission is full of oil. If no oil appears, the trans-
mission oil level is low and the transmission will
need to be serviced by an authorized Walker dealer.
When a transmission is found to be low on oil, it is
highly probable that has been caused by an oil leak
either on the input drive shaft or the control arm
pivot. Dealer service is required to correct any oil
leak along with refilling the transmission oil to the
proper level.
Grease Fitting and Oil Point Lubrication
Lubricate the grease fittings and oil points
after ev ery
25 hours
of operation. Lubricate
more often
when
operating in
dusty or dirty conditions.
Use SAE
general purpose lithium or molybdenum base grease
for grease fittings and light machine oil (SAE 10) to
lubricate oil points.
Lubricate the locations shown
in the Chassis and Deck Lubrication Points
illustration.
NOTE:
PTO universal joints (on the deck and trac-
tor) require routine lubrication
after every
25 hours
of running time. Remove tractor PTO quick discon-
nect tube assembly for easy access to grease fit-
tings.
NOTE:
The best way to lubricate the PTO tube half
of the universal joint assembly is to remove it from
the tractor. See instructions for removing and install-
ing PTO quick coupler, refer to
Deck Installation
in
Mower Deck Installation on Tractor
in the
Assem
bly Instructions.
