Gearcase Lubrication

Every 20 Hours

Gearcase Grease Fitting

Figure 20 VIEWED FROM THE BOTTOM

Top off gearcase grease level by using a lever-type grease gun to force 1–2 strokes of high quality lithium-based grease through the gearcase grease fitting.

Every 100 Hours

(or before long-term storage)

VIEWED FROM

THE BOTTOM

Gearcase

Cover

Figure 21

Remove the gearcase cover, and use solvent and a soft brush to remove all old grease from the gearcase. To refill, hand-pack the gearcase with ap- proximately 40–50 grams of high quality lithium-based grease (50–70% of capac- ity). DO NOT OVERFILL!

CAUTION!

Over-lubricating may cause the gearcase to run slower than normal, and may also cause leakage from excess grease.

Blades

Standard blades require no periodic adjustments. Make sure all blade shoulder bolts are tight and in good condition.

■■Clean blades and apply a light coating of oil to all metal surfaces. Vegetable oils may be used to protect sensitive plants from spotting.

Guide Bar

 

Locknut

Cutters

 

Plate

Spacer

Socket Head

Figure 22

Shoulder Bolt

 

135-Hour or Annual Maintenance

■■Combustion chamber should be decarbonized, and the valve clearance should be adjusted. It is highly recommended that this is done by a Shindaiwa-trained service technician.

■■Replace the spark plug annually: Use only NGK CMR5H or equivalent resistor type spark plug of the correct heat range. Set spark plug electrode gap to 0.6 mm.

NOTE:

The NGK CMR5H also meets the requirements for electro magnetic compliance (EMC).

CAUTION!

Performing a valve adjustment incorrectly may cause hard starting and/or can damage the unit. Refer to the Service Manual for complete valve adjustment procedure and torque specifications.

If you are unfamiliar with this engine or uncomfortable with this procedure, Consult with an authorized Shindaiwa servic- ing dealer.

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Shindaiwa X7502864301, DH254 Gearcase Lubrication, Blades, Hour or Annual Maintenance, Every 20 Hours, Every 100 Hours

X7502864301, DH254 specifications

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