Bush Hog GHM 1900 - Manual (Page 14)

AFTER EACH USE
1. Clean all debris from machine. Replace any
missing or illegible decals.
2. Inspect mower for worn or damaged components.
Repair or replace before next use. Any replace
ment components installed during repair shall
include the components current safety decals
specified by the manufacturer to be affixed to the
component.
3. Store mower in a dry place.
4-2 LUBRICATION (Figures 4-1a, b, c, d)
NOTE
8 HOURS
1. Driveline Universal Joints - Apply multi-purpose
grease with grease gun.
2. Driveline Guard - Apply 2-3 shots of multipur-
pose grease with grease gun to plastic fitting.
3. Cutter Bar Pivot - Apply multi-purpose grease
with grease gun. (2 fittings)
20 HOURS
4. Main Gearbox - Add EP80W-90 gear oil, if nec-
essary, to bring oil level to mark on dip stick.
5. Gear Bar Assembly - Fold mower into the trans-
port position and fasten transport lock. Clean any
grime and filth from around the fill/level plug. Add
EP80W-90 gear oil, if necessary, to bring oil level
up to the fill hole.
6. Overrunning Clutch - Apply multi-purpose grease
with grease gun.
7. Driveline - Disconnect PTO driveline, pull the two
sections apart, apply thin coat of multi-purpose
grease to outside of inner (male)
section.Reassemble sections and install. Pull
each section to be sure driveline and shields are
securely connected. Make certain PTO shielding
is in good condition.
8. Mast Pivot - Apply multi-purpose grease with
grease gun. (Figure 4-4)
The multi-purpose grease referenced in this
section is an NLGI Grade 2 type grease.
Figure 4-1a
(2) BEfore Each Use
(1) Before Each Use
(7) 20 Hours
To Remove Yoke Shield: Turn all three tabs 1/4 turn
with screwdriver and remove tabs. Slide cover and
plastic tube back.
Figure 4-1b (4) 20 Hours
(3) Before Each Use
Figure 4-1c
Overrunning Clutch (6) 20 Hours
Figure 4-1d (5) 20 Hours - Gear Bar Lube
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