Walker H37i - Grease Fitting and Oil Point Lubrication

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Maintenance Instructions LUBRICATION
7. Reinstall the elbows. When the elbow begins to
be snug, position the elbow as it was when re
moved and tighten the locknut. Reinstall reser
voir hoses to elbows.
8. Fill reservoir to 1/41/2 in. (613 mm) with
20W50 (API Service Class SL or higher) oil.
9. Start and drive the unit for 12 minutes.
10. If the transaxles sound noisy or have poor steer
ing response, there may be air trapped in the
transaxles. Follow purge instructions below.
11. If oil needs to be added, refer back to steps
410.
12. To purge air from the transaxle, raise tractor and
block with tires o󰀨 the ground. With engine run
ning, slowly move Forward Speed Control for
ward and backward 5 to 6 times. Turn o󰀨 en
gine and check oil level and add if needed.
Repeat procedure until transaxles operate at
normal noise levels and move smoothly in for
ward and reverse.
Grease Fitting and Oil Point Lubrication
Lubricate the grease ttings 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 ttings 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
disconnect tube assembly for easy access to
grease ttings.
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.
NOTE: The ball bearings on the PTO drive shaft
are sealed and do not require periodic maintenance.