Troy-Bilt 31/2 HP - Manual (Page 24)

Mower Maintenance
Lubrication
Please refer to Photo 5-7 and the list of items that
follow it to see which items on your mower should be
lubricated. Keeping these items lubricated helps your
mower to perform better.
Photo
5-7:
Mower lubrication points.
NOTES
• Use fresh automotive grease when grease is
called for. •
• Use clean automotive type oil when oiling the
blade.
22
1. Lubricate the handlebar levers’ pivot points—
Approximately every 25 hours of mower operation (or
if either handlebar lever should bind or if the lever's
action should become rough) apply oil or a silicone
spray to the pivot points of both handlebar levers.
Use care not to get any lubricant on the levers, so
that your fingers won’t slip off the lever during
operation.
2. Grease the wheel shaft and clevis pin-Whenever
you remove the wheels (or every 25 hours of engine
operation, whichever comes first), you should apply a
thin coating of grease to both the wheel shaft and
clevis pin. This helps prevent corrosion from forming
and allows you to more easily remove the clevis pin
and wheel.
3. Grease the back channel of the drive arm—Every
25 hours of engine operation, clean any dirt from the
top of the flywheel and from the back channel of the
drive arm. Disconnect the spark plug wire and rotate
the flywheel by hand until the bearing is all the way
forward in the back channel. (The hole in the flywheel
will be underneath the drive arm.) Then use your
finger to apply fresh grease to the inside of the back
channel.
4. Grease the cutter bar mount and the drive arm—
Every 25 hours of operation use a grease gun to
apply grease to the three fittings shown in Photo 5-7.
Each fitting will require four or five complete pumps
with the grease gun to make sure that it is lubricated
properly. This ensures that your blade will easily pivot
to follow the contours of the land you’re mowing. It
also ensures that cutter bar removal will be easier.
5. Oil the cutter bar—Every 5 hours of operation you
should liberally apply oil to the cutter bar. Liberally
apply oil to all the friction points on the cutter bar
blades, the blade guides, and the ledger bar. You can
use a squirt-type oil can, or you can simply pour oil
onto the cutter bar directly from the can.
6
. Oil the jackshaft chain—Every 25 hours of opera­
tion use a squirt-type oil can to sparingly oil the
jackshaft chain. Use care not to get any oil on the
cutter bar drive belt.
7. Grease the drive pin—Every 10 hours of operation
remove the drive socket and apply fresh grease to
the drive pin.