18 Owner Service
MAN1249 (2/28/2018)
LUBRICATION INFORMATION
1. Do not let excess grease collect on or around
parts, particularly when operating in sandy areas.
2. See Figure 13 for lubrication points and frequency
of lubrication based on normal operating condi-
tions. Severe or unusual conditions may require
more frequent lubrication.
3. Use a lithium grease of #2 consistency with a
MOLY (molybdenum disulfide) additive for all loca-
tions unless otherwise noted. Be sure to clean fit-
tings thoroughly before attaching grease gun. Two
good pumps of most guns is sufficient when the
lubrication schedule is followed.
PTO DRIVE LINES
Periodically check the yokes on front PTO. Make sure
the bolts and nuts are tight and the yoke is not moving
on the shaft. PTO shafts and U-joints should be spar-
ingly lubricated monthly.
QUALIFIED TECHNICIAN MAINTENANCE
GEARBOX LUBRICATION
The gearboxes should be checked quarterly to be sure
that the oil level is maintained at half full. Use plug
located halfway up back face of gearbox to check/fill
oil. A high quality gear oil with a viscosity index of 80W
or 90W and an API service rating of GL-4 or -5 is rec-
ommended for use in the gearboxes. Oil should be
changed after the first 30 hours or 30 days of operat-
ing; then checked regularly for leakage. In the case of
seasonal usage, it is best to change the oil at the end
of the season to remove moisture and corrosive con-
taminants.
Use a 5/16” Allen wrench to remove fill plug.
BEARING LUBRICATION
Lubrication of the bearings will vary considerably with
conditions. As a rule, bearings should be under-lubri-
cated rather than over-lubricated. Over-lubrication can
cause seals to blow out.
NOTICE
■
Replacement bearings should be only high
quality original equipment bearings for longer life.
Install new complete bearing housing if needed or just
replace the bearing insert. The shafts should be
straight, free of burrs, and up to size. If shaft is worn,
replace it prior to completing assembly.
BEARING AND SHAFT SERVICE
1. Place tiller on level, dry surface and block tiller.
(See Blocking Method).
2. Support rotor shaft with blocking or strap so that
bearing assembly does not support weight of rotor.
3. Remove 1/2” flange lock nuts from bearing cover,
gasket and external snap ring from shaft.
4. End plate may be removed from frame to repair or
replace bearing assembly by removing top two 1/2”
flange lock nuts and bolts.
5. Replace inside gasket, bearing assembly, bearing,
internal snap ring, or double lip seal as needed.
6. Install bearing assembly on shaft locking into place
with external snap ring.
7. Install inside gasket and end plate onto bearing
and main frame with top two 1/2” bolts and nuts
and bolts in bearing assembly.
8. Place outside gasket and bearing cover over end-
plate and bolts with 1/2” flange lock nuts tightened
into place.
9. Add grease into bearing cavity so that it is half
filled. (Approximately 40 pumps)
DRIVELINE LUBRICATION
1. Lubricate the driveline slip joint every 8 hours of
operation. Failure to maintain proper lubrication
could result in damage to u-joints, gearbox, and
driveline.
2. Lower tiller to ground, disconnect driveline from
tractor PTO shaft, and slide halves apart. Do not
disconnect the halves from each other.
3. Apply a bead of grease completely around male
half where it meets female half. Slide drive halves
over each other several times to distribute grease.
4. Apply one pump of grease to each driveline u-joint
grease fitting.
5. Apply one pump of grease to each of the plastic
driveline shield bearings.
Figure 13. Lubrication Points
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