21
5.
Set the gap on the plug to 0.030 in. (0.76 mm)
(Fig. 26).
m-110
1
Figure 26
1. 0.030 in. (0.76 mm)
6.
Carefully install the spark plug by hand (to avoid cross
threading) until it is hand tight.
7.
Tighten the spark plug an additional 1/2 turn if it is
new; otherwise, tighten it an additional 1/8 to 1/4 turn.
Important
A loose spark plug can become very hot
and can damage the engine; overtightening a spark plug
may damage the threads in the cylinder head.
8.
Connect the wire to the spark plug.
Lubricating the Gear Case
After every 100 operating hours, grease the gear case.
1.
Remove the grass bag.
2.
Install a grease gun onto the fitting through the belt
cover opening (Fig. 27).
m-224
2
1
Figure 27
1. Belt cover
2. Grease fitting
3.
Gently apply one to two pumps of #2 multi-purpose
lithium-base grease.
4.
Install the grass bag.
Adjusting the Blade Brake
Cable
Whenever you install a new blade brake cable assembly,
adjust it.
1.
Stop the engine and wait for all moving parts to stop.
2.
Disconnect the wire from the spark plug (Fig. 7).
3.
Check the adjustment of the cable by moving the
control bar toward the handle until you remove the
slack in the cable. The gap between the brake lever
and the handle must be between 3/16 and 1/4 in.
(5 and 6 mm). To adjust the cable, go to step 4.
4.
Loosen the nut on the cable bracket (Fig. 28).
1
2
4
3
Figure 28
1. Handle
2. Brake lever
3. 3/16 to 1/4 in. (5 to 6 mm)
4. cable bracket
5.
Insert a 3/16 to 1/4 in. (5 to 6 mm) object between the
brake lever and the handle.
6.
Pull down on the cable conduit until you remove the
slack from the wire.
7.
Tighten the nut.
Servicing the Wheels
Removing the Wheels
1.
Stop the engine and wait for all moving parts to stop.
2.
Disconnect the wire from the spark plug (Fig. 7).
3.
Remove the bolt, the wheel spacer, and the locknut
mounting the wheel to the pivot arm (Fig. 29).
296
1
2
3
4
5
6
7
5
7
8
9
1
Figure 29
1. Locknut
2. Wheel spacer
3. Bearing/hub assembly
4. Bearing spacer
5. Wheel half
6. Plastic cover (rear wheels
only)
7. Lug
8. Bearing (2)
9. Bolt
