Dixon 424, 422 manual Chain Drives

BODY ROMOVAL ZTR 422 - 424

1.Disconnect throttle cable from engine.

2.Remove four (4) control lever bolts and remove upper control levers.

3.Remove engaging handle by removing bolt and nut under handle.

4.Remove the two (2) attach nuts on floor of body and two (2) sheet metal screws at the rear of body.

5.Disconnect the rear wiring loom from the body by lightly squeezing the Econo-Seal plug. This plug is located at the left rear of the body.

6.Note: Loosen bolts that hold safety switch (P/N 4079) mount plate and slide switch away from engaging rod. Tighten one bolt just enough to hold switch in this position until body is reassembled.

7.Place height adjustment lever in vertical position and care- fully lift body up and off of chassis.

8.Reverse the above procedure for assembly.

Note: With the mower deck in the engaged position slide the switch bracket toward the engag ing rod (P/N 6087-1) until the switch leaf just makes contact with the switch button. Tighten both bolts in switch bracket. With the mower deck engaged, attempt to start engine in all cutting height positions. If engine starts in any cutting height positio n readjust the switch. Disengage the mower deck and start the engine in each cutting height position. If engine fails to start in any cutting height position readjust switch. With operator in normal mowing position engage mower deck and remove weight from seat. The engine should die. Repeat this procedure in each cutting height position.

CHAIN DRIVES

ADJUSTMENT

To adjust the drive chains, the body must be removed and shims added behind the transaxle. Loosen 4 bolts which hold the transaxle to the frame. Insert shims as needed for adjustment between transaxle and mount plates. When properly adjusted, the slack span at the mid -point of the chain should have a total possible movement perpendicular to the chain of about 9/16". Tighten the 4 bolts which hold the transaxle to the frame. Replace chain when rollers become loose, chain breaks, or chain fails to operate pro - perly.

LUBRICATION

1.Chains: Proper lubrication is important for effective roller chain operation. Use high quality lubricating oil (do not use grease or extra heavy oil) and apply drops of oil to the chain joints every 10-15 hours of operation.

2.Front Caster Assembly: Each caster assembly has a grease fitting located on the underside of the bearing. For best results, use any good multi-purpose grease every 1 0 - 1 5 hours of operation.

3.All other Bearings: All other bearings on your mower are sealed and require no lubrication.

WHEELS AND TIRES

Correct tire pressure is essential to the correct operation of the machine. The correct pressure for the drive tires is 8-10 Ibs. The front tires should be inflated to 20-24 Ibs. Lug nuts should be checked periodically.