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| Maintenance |
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| Wheel Drive Control Adjustment | |
! | WARNING | ! | ||
DO NOT attempt any maintenance, adjustments or service | 1. The wheel drive control is properly adjusted when there | |||
| is 1/16” to 1/8” clearance (G, Figure 22) between the | |||
with engine and blade running. STOP engine and blade. |
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| inside of the spring hook (E) and the inside of the clutch | |||
Disconnect spark plug wire and secure away from spark |
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| cable eye (C) with the wheel drive control released. | |||
plug. Engine and components are HOT. Avoid serious |
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burns, allow sufficient time for all components to cool. |
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G B
Blade Sharpening (Continued)
A
4. Sharpen the blade on a grinding wheel at an angle of 22 | D | C | |
to 28 degrees (B, Figure 21). DO NOT sharpen the blade | |||
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beyond the original cutting edge (A). | F | E |
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Do not sharpen beyond original cutting edge
22-280
| Reproduction |
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| B | for |
| A | ||
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| C |
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| End view of |
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| D |
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| blade assembly |
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A |
| Not |
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| Fig re 22: Wheel drive control adjustment | ||
Figure 21: Sharpening the mower blade |
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| 2. To adjust, unhook the upper spring (D) from the cable | ||||
5. Check blade for balance. If necessary, correct balance by |
| eye and rotate the spring in the direction required to | |||||
grinding heavy end of blade. |
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| extend or shorten the spring length. | |
6. Reinstall blade (B, Figure 20). Note the correct assem- | 3. Rehook the upper spring to the cable eye and check | ||||||
bly order: |
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| clearance. Repeat the procedure if required. | |
(A) Blade hub |
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| Note: The vinyl spring cover (B) should be kept over the | ||
(B) Blade |
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(C) Blade flange (facing up) |
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| spring at all times except for adjustments. | ||
(D) Cone washer (concave side up) |
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| 4. If the wheel drive control fails to return quickly to the | ||||
(E) Capscrew |
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7. Check torque of blade retaining cap screw. |
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| “OFF” position when released, check for binding at the | |||
Recommended torque should be 40 ft. lbs. |
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| cable holdings located on the side of the right handle. | |||
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| The upper clip should be located 2” below the upper | |
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| knob; the lower clip should be 4” above the lower knob. | |
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| The cable should slide freely with the clips installed at | |
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| these locations. |
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