Removal And Disassembly; Cleaning, Inspection And Repair; Assembly And Adjustment - Johnson SKEE-HORSE 25-201R Service Manual

REMOV AL AND DISASSEMBLY
a. Remove secondary drive as described under "SECONDARY DRIVE. "
b. Remove upper chain sprocket and key from output shaft as described
under "DRIVE CHAIN."
c. Remove six transmission to chain case screws and lockwashers.
See Fignre 10-16.
d. Remove transmission housing from chain case. Output shaft as-
sembly can now be removed.
e. Remove dog clutch assembly from shifter clevis.
f. Remove hex head socket screw from pinion gear shaft. See Figure
6- 17. The shifter clevis, pinion gear, pinion bearing, thrust wash-
ers, thrust bearing and shims,
if
used, can be removed.
g. Remove end cap and bearing. Remove input shaft and gear. The
pinion gear shaft and "0" ring can be removed when the linkage is
disassembled from the shaft.
CLEANING, INSPECTION AND REPAIR
a. Clean all parts with a cleaning solvent such as Trichloroethylene
and blow dry with compressed air.
b. Inspect shafts and output shaft splines for wear.
c. Turn bearings by hand; discard any which do not rotate smoothly
or which have excessive play.
d. Inspect clevis, clutch dog, and cradle liner for wear or damage.
e. Inspect "0" ring on pinion gear shaft. Replace
if
required.
ASSEMBLY AND ADJUSTMENT
a. Install input shaft and gear. Use Loctite bearing mount on the
O.D. and I.D. of the sealed bearings, see Figure 10-13.
b. Insert pinion shaft and assemble shim, thrust washer, thrust bear-
ing, thrust washer, pinion gear and bearing assembly and shifter
dog clevis.
c. Install output shaft, output gear and retaining ring. Install bearing
in gearcase, using Loctite bearing mount on O.D. and I.D. Mount
transmission to chain case with four screws. Gear backlash should
be .000" when the pinion gear shaft retaining ring is held against
the outside of pedestal housing. This may be adjusted by means of
shims installed on the pinion shaft and these are available in .002,
.003, .004, .005 thousandths. See Figure 10-17 .
d. Remove housing, output shaft and gear. Apply Loctite stud lock
to clevis socket screw. Complete pinion assembly.
e. Install clutch dog assembly and output gear on shaft splines and
assemble transmission to chain case with six screws and lock-
washers.
f. Install secondary sheave on input side as described under "SEC-
ONDARY DRIVE."
10-9
Figure 10-16
Figure 10-17