Drive Chain; Lubrication; Adjustment; Removal And Installation - Johnson SKEE-HORSE 25-201R Service Manual

10-4
Figure 10-8
Figure 10-9
Figure 10-10
DRIVE CHAIN
LUBRICATION
The drive chain and sprockets are lubricated by the chain running
through an oil bath in the bottom of the chain case. Check oil level by
removing oil fill plug. Oil should come up to bottom of oil fill hole.
See Figure 10-S. Fill with OMC Type "C" oil or ESSO Gear Oil GX75-S0.
It
will hold approximately 4 oz. Replace plug.
ADJUSTMENT
Total slack must be 1/4"
±
1/16" as shown in Figure 10- 9. Remove
chain case cover. (Note: Oil will drain when cover is removed.) Place
a straightedge over chain at the sprockets, press on center of chain and
measure slack at this point.
If
the chain requires adjustment, use the
following steps:
1. Loosen jam nut, see Figure 10- 9.
2. To tighten chain, turn adjusting screw clockwise.
3. To loosen chain, turn adjusting screw counterclockwise.
4. Retighten jam nut to 10-12
ft.
lbs.
5. Apply EC1022 adhesive in groove of chain case prior to assembling
seal. Insert seal into groove with joint in line with top right cover
mounting screw hole. Replace chain case cover. Torque the 6
screws 60-S0 inch lbs.
6. Replace oil in chain case. See "Drive Chain Lubrication" above.
REMOVAL AND INSTALLATION
a. Remove chain case cover.
b. Loosen chain (see "ADJUSTMENT" above).
c. Remove screw and washer from upper drive shaft.
d. Remove sprocket and chain from upper shaft. Remove retaining
ring to release idler sprocket if additional clearance is required to
remove chain. See Figure 10 - 9.
e. Chain can now be removed from lower sprocket.
INSTALLATION
a. Assemble in reverse order of disassembly.
b. Adjust chain per "ADJUSTMENT" above .
. c. Add chain lubricant per "LUBRICATION" above.
REPAIR
A broken drive chain can be repaired with master links available
from your dealer.