Snapper 7800979-00 Operator's Manual page 22

26
Wheel Drive Control Adjustment
WARNING
Amputation Hazard
• DO NOT attempt any maintenance, adjustments or service
with engine and blade running.
• STOP engine and blade.
• Disconnect spark plug wire and secure away from spark
plug.
Burn Hazard
• Engine and components are HOT.
• Avoid serious burns, allow sufficient time for all
components to cool.
1. The wheel drive control is properly adjusted when there is
1/16" to 1/8" (1.6 - 3.2 mm) clearance (G, Figure 27)
between the inside of the spring hook (E) and the inside of
the clutch cable eye (C) with the wheel drive control
released.
2. To adjust, unhook the upper spring (D) from the cable eye
and rotate the spring in the direction required to extend or
shorten the spring length.
3. Rehook the upper spring to the cable eye and check
clearance. Repeat the procedure if required.
Note: The vinyl spring cover (B) should be kept over the spring
at all times except for adjustments.
4. If the wheel drive control fails to return quickly to the OFF
position when released, check for binding at the cable
holdings located on the side of the right handle. The upper
clip should be located 2" (5 cm) below the upper knob; the
lower clip should be 4" (10 cm) above the lower knob. The
cable should slide freely with the clips installed at these
locations.
22
27
Driven and Drive Disc Service
WARNING
Amputation Hazard
• DO NOT attempt any maintenance, adjustments or service
with engine and blade running.
• STOP engine and blade.
• Disconnect spark plug wire and secure away from spark
plug.
Burn Hazard
• Engine and components are HOT.
• Avoid serious burns, allow sufficient time for all
components to cool.
If the mower does not propel itself properly, check for the
following problems:
1. Grease on the drive disc (A, Figure 28) causing slippage.
2. Broken or disconnected drive spring (B).
3. Driven disc (C) is out of adjustment.
4. Driven disc rubber is worn - does not contact drive disc
properly.
5. Worn Poly-V belt (D) or engine drive belt (E).
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