6
BLADE DRIVE AND TENSION
NOTE
: The Blade Drive belt is under constant tension by the idler arm on the deck
DISCONNECT
spark plug wire before servicing unit.
1
. Disconnect spark plug wire.
2.
Loosen
six
screws holding belt deck
top plate (item26)
and remove the
plate
.
3.
Examine condition of belt and amount of tension on belt.
4.
If the idler
(item14)
is not providing enough tension inspect the spring attaching it to the spindle base. If not enough
tension is being put on the arm, replace the spring.
5.
Replace engine
plate
and secure with screws removed earlier.
6.
Reconnect spark plug wire.
7.
Check belt tension by operating unit under conditions that caused belt slippage. If belt continues to slip it may require
replacement before operation can be continued.
BLADE CLUTCH ADJUSTMENT
DISCONNECT
spark plug wire before servicing unit.
If clutch continues to slip or squeal, do not operate equipment until adequate adjustment or repair has been
performed. Improper adjustment can cause clutch to overheat and slip, greatly reducing performance and clutch life.
1.
Disconnect spark plug wire.
2.
As the clutch/brake wears or begins slipping or squealing, adjustment may be
required to maintain proper cable tension and clutch engagement. A properly
adjusted blade clutch should require 10 lbs. of force to depress the end of the
clutch lever. The blade clutch cable spring should stretch 1/4” to 3/8” (6.4-9.5
mm).
3.
Adjust cable tension by tightening or loosening cable adjustment nut on rear of
engine base (See
Fig. 9
). Be sure to leave enough slack in cable to allow
blade brake to engage.
4.
Reconnect spark plug wire.
Fig. 9
UNIT IS HEAVY
. Make sure support is adequate to support weight of machine.
3.
Block blade to prevent it from rotating during removal.
4.
Remove blade bolt , and friction washer .
5.
Remove blade and install replacement blade. When replacing the blade use
ORIGINAL PARTS
NOTE
: When sharpening blade make sure to sharpen all cutting edges. If the lock nut is removed and replaced more
than once, it should be replaced with a new lock nut
.
6.
Attach new blade with new blade bol
t
, and new friction washer removed earlier included with your
new blade.
NOTE
: Inspect fasteners for wear and replace if necessary.
7.
Torque blade lock nut to 40 ft-lbs.
8.
Reconnect spark plug wire.