Snapper RT5 series - CHAIN CASE SERVICE PROCEDURES; CHAIN CASE DISASSEMBLY STEPS; TILLER UNIT DISASSEMBLY OVERVIEW

FIG. 3.4 ■ SEPARATING 5 HP UNIT
CHAIN CASE
The chain drive on the rear tine tiilers is very similar
in design to that used for years on the Snapper front
tine tiilers. There are, however, certain refinements
on the rear tine type. If the tines stop rotating and
the cause is not due to the drive belt or broken shear
pins, the chain may be broken or off the sprocket
gears and or the sprocket gear teeth may be sheared
caliing for overhaui of the chain case. Aithough not
absolutely necessary, the tiller unit should be
separated from the traction drive unit for easier
handling during overhaul.
SEPARATING UNITS
Remove the drive belt before separating the tiller
unit from the traction drive unit. On 5HP models,
remove the four nuts securing the tiller to the tractor
unit. On 8HP models simply pull the hair pin and
clevis pin to separate the units. NOTE: On later RTS
models, remove two nuts before separating units.
With the exception of the mounting method, the
tiller units are the same on the 5 and 8 horsepower
units. After separating the tiller, move it to a
workbench for overhaul.
FIG. 3.6 - REMOVE GRIP & SPRING
TILLER DISASSEMBLY
The following procedure is suggested for complete
disassembly of the tiller unit.
STEP 1: Remove the tines from the rotor shafts.
STEP 2: Disconnect the spring from the depth bar
and remove the grip from the bar. (Figure 3.6).
STEP 3: Remove lower bolt from depth bar retainer
plate and pull the depth bar out thru bottom of tiller
cover. (Figure 3.7).
STEP 4: Remove the nut securing the chain case
pulley, note stack-up of components for correct
reassembly later then remove the pulley and
guard.(Figure 3.8, 3.9).
STEP 5: Remove the six bolts securing the mounting
frame brackets to the tine cover. (Figure 3.10).
STEP 6: Note position of spacers and front brace on
frame assembly then remove the nuts securing the
long bolts thru the chain case to the brackets.
(Figure 3.11).
FIG. 3.5 ■ CLEAN SHAFT AREA
3-2
FIG. 3.7 ■ REMOVE DEPTH BAR