Gearbox Maintenance - Ferris IS5100Z Series Operator's Manual

Troubleshooting, Adjustment & Repair

GEARBOX MAINTENANCE

Check Gearbox Oil Level
1. Remove fill plug (A, Figure 51) on gearbox.
2. Once plug is removed, oil should seep out of fill
plug hole. If no oil drains out, fill with SAE 80-90
weight gear oil until oil starts to seep from hole,
then replace fill plug.
Changing Gearbox Oil
NOTE: The gearbox lubricant should be changed
after the first 100 hrs. or 30 days of operation, then
after 500 hours or 12 months.
1. Remove the mower deck drive belt (see MOWER
DRIVE BELT REMOVAL & REPLACEMENT for
instructions).
2. Rotate the the mower deck drive pulley on the
gearbox so the drain plug is aligned with the
opening between the pulley spokes.
3. Place a container under the gearbox drain hole
and remove the drain plug (B).
4. Replace drain plug and fill with SAE 80-90 weight
gear oil until oil starts to seep from hole, then
replace fill plug.
5. Using a parts solvent, thoroughly clean any
excess oil from the pulley faces and groove.
6. Reinstall the mower deck drive belt (see MOWER
DRIVE BELT REMOVAL & REPLACEMENT for
instructions).
50
Top
B
Figure 51. Gearbox Oil Level
A. Fill Plug
B. Drain Plug
A
Front
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