Adjusting Brake Cable; Adjusting Wheel Drive; Cleaning Cooling System; Cleaning Muffler And Exhaust Port - Toro ProLine 21 Recycler II Operator's Manual

into aligned holes to hold adjustment. Push
throttle cable until throttle arm makes contact
with choke arm. Tighten cable clamp screw.
Remove pin if used.

Adjusting Brake Cable

Whenever a new blade cable assembly is installed, an
adjustment is required.
1. Stop engine and pull wire off spark plug (Fig. 7).
2. CHECK ADJUSTMENT (Fig. 20)—Move
control bar toward handle until slack in wire is
removed. Gap between brake lever and handle
must be 3/16"–1/4". See step 3 for adjustment.
3. ADJUST CABLE CONDUIT
Model 22031 (Fig. 20)–Loosen jam nut on
brake cable. Insert 3/16"-1/4" object
between brake lever and handle. Turn cable
adjuster on brake cable until slack is
removed. Then tighten nut.
Model 22040 (Fig. 21)–Loosen nut on cable
bracket. Insert 3/16"-1/4" object between
brake lever and handle. Pull down on cable
conduit until all slack is removed from
wire. Then tighten nut.

Adjusting Wheel Drive

If mower does not self–propel or has a tendency to
creep forward when drive is not engaged, adjust
wheel drive control knob on rear of gear box.
1. Close door in mower housing and remove bag.
2. ADJUSTMENT (Fig. 24)—Rotate control knob
clockwise 1/2 turn if mower does not
self–propel. If mower creeps forward, rotate
knob 1/2 turn counterclockwise to loosen belt.
3. CHECK ADJUSTMENT—Slowly pull mower
backward while control bar is gradually moved
toward handle. Adjustment is correct when rear
wheels stop turning and control bar is about
1–inch from handle (Fig. 25).

Cleaning Cooling System

After every 75 operating hours, clean dirt and chaff
from cylinder, cylinder head fins and from around
carburetor and linkage. Also remove debris from air
intake slots on recoil housing. This will ensure proper
cooling and best engine performance.
Cleaning Muffler And Exhaust
Port
Clean end of muffler pipe and exhaust port after every
75 hours of operation.
POTENTIAL HAZARD
Muffler and engine surface become hot
when mower is in operation.
WHAT CAN HAPPEN
Contact with hot muffler surface could
cause a burn.
HOW TO AVOID THE HAZARD
Clean muffler and exhaust port only after
engine and muffler are cool.
1. Stop engine and pull wire off spark plug (Fig. 7).
2. Use hard wood scraper and remove carbon from
end of muffler pipe (Fig. 22).
3. Remove screw, two nuts, and lock washers
(Fig. 22). Slide muffler off mounting pins.
4. Slowly pull recoil starter so piston covers
exhaust port (Fig. 23).
5. Clean carbon from exhaust port (Fig. 23) with
flat, hard wood scraper.
IMPORTANT: Do not use a metal scraper or
similar object to clean exhaust port because
accidental damage to the piston or cylinder
could easily occur.
6. Reinstall muffler with screw, (2) nuts and lock
washers (Fig. 22). After cleaning exhaust port,
make sure muffler gasket is still usable.
EN–12