13
Note: The control cable must have slack in it when
you disengage the control bar.
4. Adjust the cable as follows:
Model 28225 only:
A. Unhook the spring end from the bottom hole in the
control bar (Fig. 4).
B. Slide the spring cover off the spring and the cable
adjuster.
C. Unhook the Z–fitting from the cable adjuster
(Fig. 12) and position the Z–fitting in a higher or
lower hole on the adjuster to obtain a proper gap of
1/16 to 1/8 inch (2 to 3 mm) between the control
bar and the handle (Fig. 4).
897
1
2
3
4
Figure 12
1.
Cable
2.
Z-fitting
3.
Cable adjuster
4.
Spring
D. Install the spring cover over the cable adjuster and
the spring.
E. Hook the spring into the bottom hole of the control
bar.
Model 28226 only:
A. Unhook the upper cable end from the hole in the
control bar (Fig. 5).
B. Slide the spring cover up the cable to expose the
cable adjuster (Fig. 13).
3
1
630
2
Figure 13
1.
Cable adjuster
2.
Z–fitting
3.
Spring cover
C. Unhook the Z–fitting from the cable adjuster
(Fig. 12) and position it in a higher or lower hole
on the adjuster to obtain a gap of 1/16 to 1/8 inch
(2 to 3 mm) between the control bar and the handle
(Fig. 5).
D. Install the spring cover over the cable adjuster.
E. Install the upper cable end into the bottom hole in
the control bar.
5. Check the adjustment (refer to steps 2 and 3 above).
After extended use, the drive belt may wear and lose its
proper belt tension. Improper belt tension causes the belt
to slip and decreases the performance under a heavy load.
Belt slippage may occur after 2 or 3 seasons of normal
usage (10 to 15 hours). If the drive belt slips (continuously
squeals) under a heavy load, increase the belt tension by
doing one of the following steps:
•
For Model 28225: Position the spring end in the top
hole of the control bar (Fig. 4).
•
For Models 28226: Position the upper cable end into
the upper hole of the control bar (Fig. 5).
Using the incorrect adjusting hole in the control bar can
reduce the drive belt life. Occasional belt slippage
(squealing) may occur in extremely wet conditions due to
moisture in the drive system. To remove moisture, start
the rotor and operate it without a load for 30 seconds.
Once you remove the moisture, the drive belt should not
slip.
Replacing the Scraper
Before each season, inspect the scraper for wear. If the
thickness of the scraper’s bottom is less than 1/16 inch
(2 mm), replace the scraper (Fig. 14).
634
2
1
Figure 14
1.
Scraper
2.
1/16 inch (2 mm)
Note: The running time and the roughness of the driveway
or sidewalk determines the scraper wear rate.
1. Stop the engine and wait for all moving parts to stop.
2. Remove the key from the switch.
