Sliding Gear; Gear And Upper Chain Sprocket; Drive Wheel Chain Sprocket - Textron Jacobsen Ryan 544853C Manual Del Usuario

3
FIGURE 47
1. Locking Nut
2. Gear Adjustment Screw
20. After installation of pulley shaft, check for proper
clearance between dog clutch faces. With the blade
shifter handle "Engaged", measure between the dog
clutch faces. Remove or add shims to obtain .015"
(.39 mm) clearance. See Figure 49.
.015" CLEARANCE
BETWEEN
DOG CLUTCH FACES
FIGURE 48
Clearance Between Dog Clutch Faces
21. Check gear adjustment screw for proper adjustment.
To adjust screw, loosen locking nut and tighten screw
against gear. Torque screw to 10 ft.-lbs. (14 N·m).
22. Back adjusting screw out until 1/16" (1.59 mm) is
obtained between screw and gear. See Figure 48.
23. Tighten locking screw.
6.9
1. Remove gear case cover.
2. Remove belt shield and belt (if unit has cut-off,
remove cut-off chain and dog wheel assembly).
1
2
5027
ADJUSTING
SCREW
1/16"

SLIDING GEAR

3. Remove screw, lockwasher, and flatwasher from
end of belt pulley (if unit has cut-off, remove the chain
sprocket bolted to the belt pulley).
4. Remove the four (4) screws securing the hub to
pulley. Insert two (2) screws into the threaded holes
on hub and tighten against the pulley. Tap pulley with
a soft hammer (rubber, lead, or brass) and continue
turning the screws approximately 1/2 turn each time.
Alternate screws until hub is free from pulley and
remove pulley from shaft.
5. Remove the four (4) screws securing the bearing
cage. Pull bearing cage and pulley shaft out of case,
removing blade drive gears as shaft is pulled out.
6. Remove plugs from both sides of gearcase to
expose sliding gear shaft ends.
7. Remove large snap ring holding bearing in gear-
case.
8. Drive the shaft out the right side until the large gear
can be removed. Remove large gear, spacer and
snap ring.
9. Remove shaft and sliding gear will come off as shaft
is removed.
10. Install new gear and assemble in reverse order.
6.10
UPPER CHAIN SPROCKET
1. Remove gear case cover.
2. Remove belt shield and belt from unit.
3. Remove the two (2) top screws on both side arms
and turn towards rear of unit for easier access to
shaft ends.
4. Remove plugs from each side of case and remove
the large snap ring securing the bearing to gearcase
on the left side of unit.
5. Expand snap ring inside of case, over the shaft and
move gear over for easier access to master link.
6. Remove master link and lay chain on bottom of gear
case (chain does not have to be removed from drive
wheel sprocket).
7. Drive shaft out the left side of unit, releasing gears,
chain sprocket and spacers.
8. Install new gear and assemble in reverse order.
6.11

DRIVE WHEEL CHAIN SPROCKET

1. Drain gearcase oil and remove gearcase cover.
2. Remove belt shield and belt from unit.
3. Remove the two (2) top screws on both side arms
and lean them towards the rear of unit for easier
access to shaft ends.
SERVICE 6
GEAR AND
23