Primary Chain Case - Snapper RT5 Series Service Manual

FIG. 4. 16 ■ DISCOUNT SHIFT LINKAGE
FIG. 4. 17 - TWIST ASSEMBLY SIDEWAYS
PRIMARY CHAIN CASE
The primary chain case is easiiy removed for
overhaui and repair when the transmission is puiied.
The primary chain case in the rear tine tiiler is
aimost identicai to the assembly used for years on
Snapper rear engine riding mowers. Recondition the
primary chain case as foiiows:
STEP 1: The primary chain case is attached to the
shift iinkage by the short shift iink. Remove the nut
and twist the assembly sideways to remove (Figure
4.17). Refer to figure 4.18 for iocation of com¬
ponents.
STEP 2: Remove the drain plug and allow grease to
drain then remove the screws securing the case
cover to the sprocket cover.
STEP 3: Separate case halves by prying apart.
Thoroughly clean and inspect components for wear
and/or damage.
BALL-BEARING-
ROLLER
SPROCKET-SHAFT-
BALL-BEARING-
STEP 4: If hub-sprocket or sprocket bearings have to
be replaced, press these out toward the inside of
case and reverse direction when installing
replacements. NOTE: Earlier production models us¬
ed bushings for hub-sprocket. Replace these with
needle bearings. Refer to the parts manual for part
numbers.
STEP 5: Reassemble chain case in sequence shown
in figure 4.18 and reinstall to tiller after adding not
more than 2 ounces of Snapper 00 grease.
COVER-
GASKET-
PLUG
DRIVEN DISC
■HUB SPROCKET
THRUST WASHER
~'-BUSING OR NEEDLE BEARING (RT5,RT8)
FIG. 4. 18 ■ EXPLODED VIEW OF PRIMARY CHAIN CASE
4-5