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Brake Arm – All models
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, STOP THE ENGINE, WAIT FIVE
(5) MINUTES TO ALLOW ALL PARTS COOL. DISCONNECT THE SPARK PLUG WIRE, KEEPING IT AWAY FROM
THE SPARK PLUG.
BEFORE REPLACING THE BRAKE ARM, CHECK THAT THE MOUNTING OF THE BELT IS ON THE CORRECT
SIDE OF THE IDLER PULLEYS (SEE
FIGURE 25
ON PAGE 35), AND NOT FRAYED, WORN OR STRETCHED.
ALSO, SEE ADJUSTING THE TRIMMER HEAD BELT TENSION THROUGH THE TRIMMER CONTROL CABLE
ON PAGE 42.
Tools needed:
3/8" Socket
7/16" Wrench or Socket
1/2" Wrench or Socket
1. Remove the Mow-Ball™ Support Assembly. See
“Removing the Mow-Ball™ Support Assembly” on
page 31.
2. Remove the Stone Guard Flap. See “Removing the
Stone Guard Flap” on page 33. This step is not
applicable to the Self-Propelled model.
3. Remove the Bottom Shield. See “Bottom Shield”
on page 33 or 34 depending on your model.
4. Using a 3/8" Socket, remove the Lock Nut from
the Brake Actuator Rod and remove the Rod from
the Brake Arm (Figure 29).
5. Using a 1/2" Wrench, remove the four (4)
Mounting Bolts that retain the Bearing Housing
from topside of the Trimmer Housing (Figure 30).
6. Turn the Bearing Assembly over to expose the
Brake Arm Assembly and unhook the Tension
Spring from the Brake Arm (Figure 31).
7. Remove the Phillips Screw (Figure 31) retaining
the Brake Arm.
8. Install the new Brake Arm Assembly in the reverse
order.
NOTE:
When replacing the Brake Actuator Rod, do not
tighten the Nut against the Brake Arm. Leave the
Nut just loose enough to allow the Rod to slide freely
in the Brake Arm slot.
ctuato
Rod
Figure 29
Figure 31
Spring
Brake Arm
Phillips
Screw
Figure 30
Lock Nut
Bearing Housing
Mounting Bolt
4PLS
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