Ditch Witch 410SX - Manual (Page 106)

410sx Operator’s Manual
Service - 105
2000 Hour Service
10. Clean debris from radiator cooling fins using compressed air or pressurized water.
Change Spark Plugs
Change spark plugs every 2000 hours. To
change spark plug:
1. Disconnect the ignition coil.
2. Remove the spark plug.
3. Use a feeler gauge to set gap on new spark
plug to 0.028-0.031 in (0.70-0.80 mm)
4. Install new spark plug and tighten to 20 ft-lb
(27 N-m).
NOTICE:
• To prevent engine damage, it is extremely important that different coolants not be mixed or
interchanged without extreme care. It is strongly recommended that a single brand and type of
coolant be used consistently for all service and maintenance.
• Tractors are shipped with John Deere Cool-Guard coolant.
• Should it be necessary to switch coolant brands or types, all residual coolant must first be carefully
flushed from the cooling system.
• Failure to properly flush old coolant may result in engine failure.
• Do not use water as coolant.
IMPORTANT: When reassembling, install the
ignition coil inside the spark plug terminal
firmly. Make sure that the wiring and the
ignition coil are correctly connected.
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