Service and adjustments, Engine – Husqvarna 7021F User Manual

Page 13

Advertising
background image

13

ENGINE

Maintenance, re pair, or re place ment of the emission con-
trol de vic es and sys tems, which are be ing done at the
cus tom ers expense, may be performed by any non-road
engine repair es tab lish ment or individual. Warranty repairs
must be performed by an authorized engine man u fac tur er's
service outlet.

ENGINE SPEED

Your engine speed has been factory set. Do not attempt to
increase engine speed or it may result in personal injury. If
you believe that the engine is running too fast or too slow,
take your lawn mower to an authorized service center for
repair and adjustment.

CARBURETOR

Your carburetor is not adjustable. If your engine does not
operate properly due to suspected carburetor problems,
take your lawn mower to an authorized service center for
repair and/or adjustment.

IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVERNOR,
WHICH IS FACTORY SET FOR PROPER ENGINE SPEED.
OVER SPEED ING THE ENGINE ABOVE THE FACTORY HIGH
SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE
ENGINE-GOVERNED HIGH SPEED NEEDS ADJUSTING,
CONTACT YOUR NEAREST AUTHORIZED SER VICE CEN TER,
WHICH HAS PROPER EQUIP MENT AND EXPERIENCE TO
MAKE ANY NEC ES SARY ADJUSTMENTS.

SERVICE AND ADJUSTMENTS

2. Remove belt from gearcase pulley.

3. Turn lawn mower on its side with air fi lter and car bu -

re tor down.

4. Remove blade and engine pulley.

TO REPLACE DRIVE BELT (See Fig. 15)

1. Place new drive belt on engine pulley, inside belt re-

tainer.

2. Route the other end of the new drive belt through hole

in housing.

3. Reinstall blade.

4. Return mower to upright po si tion.

5. Install new belt on gearcase pulley.

6. Reinstall belt keeper and drive cover.

NOTE: Always use factory approved belt to assure proper
fi t and long life.

TO ADJUST HANDLE (See Figs. 16 and 17)

The handle can be mounted in a high or low position. The
mounting holes in the bottom of lower handle are off center
for raising or lowering the handle.

1. Remove upper handle and all wire tie(s) securing

cable(s) to lower handle.

2. Remove hairpin cotters from lower handle bracket

mount ing pin.

3. Squeeze lower handle in to remove it from mounting pins.

4. Turn lower handle over to raise or lower handle.

5. Squeeze lower handle in and po si tion holes onto

mount ing pins on handle bracket.

6. Reassemble upper handle and all parts removed from

lower handle.

LOWER
HANDLE

ROTATE

FIG. 17

MOWING
POSITION

MOWING
POSITION

HIGH POSITION

LOW POSITION

HANDLE
BRACKET

MOUNTING
PIN

HAIRPIN
COTTER

FIG. 16

FIG. 15

BLADE
BOLT

HARDENED
WASHER

LOCK
WASHER

BLADE ADAPTER

KEY

BLADE

TRAILING EDGE

CRANKSHAFT

KEY WAY

CRANKSHAFT

BELT

RETAINER

Advertising