Snapper 20 Serie Manual Del Operador página 23

Driven and Drive Disc Service
WARNING
!
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. 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 24) 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).
B
E
A
Figure 24: Wheel drive components
If any of the above (1 thru 5) are causing problems,
service as follows:
Cleaning Drive Disc & Driven Disc
If oil or grease on the drive disc or driven disc is caus-
ing slippage, clean the discs as follows:
1. Wipe away any oil or grease with a clean cloth.
2. Use either an approved grease solvent or hot,
soapy water to clean drive disc or driven disc.
3. Rinse components with clean water.
4. Dry components with a clean cloth.
Drive Spring Repair/Replacement
If the drive spring (A, Figure 25) is loose, reconnect. If
the spring is broken, replace with a new spring.
!
NOTE: Use a pair of needle nose pliers to install the
drive spring.
IMPORTANT: If the drive system continues slipping,
refer to the Troubleshooting section.
A
C
D
Figure 25: Replacing the drive spring
Driven Disc Adjustment
If the drive disc and driven disc are clean and the
mower drive is still slipping, adjust the driven disc as
follows:
1. Move the ground speed control (A, Figure 26) into
the 'fast' position.
Figure 26: The ground speed control
Maintenance
C
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