Driven Disc Service, Driven Disc Adjustment

Section 4 - REPAIR & ADJUSTMENTS

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.

4.3DRIVEN DISC SERVICE

If the mower does not propel itself properly, See Figure 4.6. Check for the following problems:

USE NEEDLE NOSE PLIERS TO INSTALL DRIVE SPRING

DRIVEN DISC & RUBBER RING

DRIVE

SPRING

POLY-V-BELT

DRIVE SPRING

ENGINE

DRIVE BELT

FIGURE 4.6

1.Grease on drive disc causing slippage.

2.Broken or disconnected drive spring.

3.Driven disc is out of adjustment.

4.Driven disc rubber ring is worn - does not contact drive disc properly.

5.Worn Poly-V Belt or engine drive belt.

NOTE: If any of the above (1 thru 5) are causing problems, service as follows:

4.3.1. Cleaning Drive Disc & Driven Disc.

If oil or grease on the drive disc or driven disc is causing slippage, clean 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.

4.3.2. Drive Spring Repair/Replacement

If drive spring is loose, reconnect as shown in Figure 4.7. If spring is broken, replace with new spring.

IMPORTANT: If machine drive system continues slipping see Trouble Shooting section.

FIGURE 4.7

4.3.3. 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.Place shift rod in the sixth speed position. See Figure 4.8.

MOVE GROUND

SPEED CONTROL

TO SIXTH SPEED

POSITION

SIXTH

FIRST	FIRST SPEED
	POSITION

FIGURE 4.8