To replace drive belt, Figure b, Figure d – Craftsman 917.374111 User Manual

Page 17: Figure c

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3. Remove drive cable from anchor, then

detach it and return spring from idler
arm assembly (See Fig. B).

7. Use a wood block between blade and

mower housing to prevent blade from

turning when removing blade bolt.

NOTE: Protect your hands with gloves

and/or wrap blade with heavy cloth.
8. Remove blade bolt.
9. Remove blade, attaching hardware

(bolt, lock washer and hardened wash
er), blade adapter and debris shield as
one assembly.

10. Remove drive belt from blade adapter

and debris shield; discard old belt.

TO REPLACE DRIVE BELT

1. Place new drive belt in the belt retainer

of the debris shield. Be sure to route
belt between belt keepers and through
slot (See Figure D).

Belt retainer^

Tab

Drive
pulley

Drive
belt

Figure B

Debris

shield

4. Pivot idler arm assembly to slacken

drive belt, then remove drive belt from
drive pulley, belt keepers and idler arm.

5. Turn lawn mower on its side. Make

sure air filter and carburetor are up.

6. Remove screw securing debris shield.

Note that the debris shield has a tab

which fits into a gap in the housing

(See Figure C).

Figure D

Crankshaft

Housing
hole

Blade

i adapter

(pulley

end)

Screw Trailing edge ■

Figure C

Lock-washer

Route the other end of the new drive
belt through hole in housing.
Reattach debris shield to housing with

screw previously removed. Be sure tab
of debris shield is in gap of housing.

Position blade on the blade adapter

aligning the two (2) holes in the blade

with the raised lugs on the adapter.

Be sure the trailing edge of blade (op
posite sharp edge) is up toward the

engine (See Figure C).

Install the blade bolt with the lock

washer and hardened washer into

blade adapter and crankshaft.
Use block of wood between blade and
lawn mower housing and tighten the
blade bolt, turning clockwise.

• The recommended tightening torque is

35-40 ft. lbs.

IMPORTANT: Blade bolt is heat treated.

If bolt needs replacing, replace only with

approved bolt shown in the Repair Parts
section of this manual.
8. Return mower to upright position.