Shindaiwa HT230 Service Manual
Gearcase and cutters
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Also See for HT230:
- Owner's/operator's manual (60 pages) ,
- Owner's/operator's manual (12 pages) ,
- Owner's/operator's manual (20 pages)
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Table of Contents
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Summary of Contents for Shindaiwa HT230
- Page 1 SERVICE MANUAL GEARCASE AND CUTTERS Shindaiwa HT230 and DH230 Hedge Trimmers HT230 DH230 DH2301 WARNING! The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
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Page 2: Table Of Contents
Service Manual Shindaiwa HT230 and DH230 Hedge Trimmers Gearcase and Cutters Contents Section page 1 Model Identification/Specifications ..3 2 Internal Gearcase Identification ..... 5 3 Theory of Operation ........ 6 4 Troubleshooting ........8 5 Powerhead and Cutter Removal ..10 6 Gearcase Disassembly/Inspection .. -
Page 3: Model Identification/Specifications
Air Cleaner Cover Rear Handle Bracket Gearcase DH230 Adjustable Shoulder Bolts with Locking Nuts DH2301 Cutters Powerhead Hand Guard Rear Handle and and Front Throttle Assembly Handle Assembly Cover Air Cleaner Guide Cover Figure 1. Major Component Identification Shindaiwa Inc. 1998... - Page 4 Drive and Cutters Specifications HT230 & DH230 Dimensions (L x W x H) HT230 Blade ..Double-action, single edge HT230-30 ..... 990 x 210 x 210 mm DH230 Blade ..Double-action, double edge HT230-40 ....1330 x 210 x 210 mm Blade Length DH230-24 ....
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Page 5: Internal Gearcase Identification
Felt Seal Shielded Bearings Lower Connecting Thrust Washer Lower Guide Plate Pinion Gear Thrust Washer Shielded Bearing Upper Guide Sealed Plate Bearing Upper Connecting Gearcase Grease Fitting HT2329 Clutch Drum Figure 2. Internal Gearcase Components (shown inverted). Shindaiwa Inc. 1998... -
Page 6: Theory Of Operation
Figure 4 engagement with the cam gear. The pinion-to- Pinion cam gear combination reduces engine rpm by Gear a ratio of 1:4.98. Cam Gear Clutch Drum HT2347 Figure 4. Reduction Gearing. Shindaiwa Inc. 1998... - Page 7 Cutters are identified as “upper” and “lower”, and are available with appropriate length guide bars to provide cutting swaths of varying widths. Slot Drive Stud Shoulder Bolt Lower Cutter HT230 Shown HT2349 Figure 6. Cutter Drive Operation. Shindaiwa Inc. 1998...
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Page 8: Troubleshooting
Section 9 Grease leaking from gearcase at guide bar Felt seal damaged Replace seal Cover gasket damaged Replace gasket Water in gearcase (possible Drain and refill per Section 9 Gearcase lube has white outside storage) “milky” appearance Shindaiwa Inc. 1998... - Page 9 Troubleshooting Section Guide Plate Worn/Damaged Damage Worn Dirt Shoulder Accumulation HT230 Shown Bolt Slots Poor Lubrication Dull or Damaged Cutters HT2301 Shoulder Bolts Worn/Incorrectly Adjusted Low or Contaminated Lubricant Internal Gearcase Wear Figure 7. Common Causes of Cutter or Gearcase Problems...
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Page 10: Powerhead And Cutter Removal
Air Cleaner Cable End IMPORTANT! Throttle (removed for Removal–HT230 Service procedures for the HT230 DH230 Lever clarity) powerhead are similar to those for the T230 trimmer and are described in Shindaiwa Grass Trimmers, Brushcutters and Lawn Edgers Service Manual , Form 60506. - Page 11 (Figure 11). Ignition Wire Connector DH2307A Ignition Wire Figure 10. Disconnecting the Throttle Cable. Powerhead Gearcase DH2306A Assembly Rear Handle Gearcase Assembly Mounting Black Ground Screws (3) Wire Figure 11. Removing the Powerhead Assembly from the Gearcase Assembly Shindaiwa Inc. 1998...
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Page 12: Gearcase Disassembly/Inspection
Cover Guide Cover Screws Plate Screws Gasket Felt Grease Lower Guide Seal Plate Thrust Washer Gearcase Cutter Assembly HT2333 Cam Gear HT2351 Figure 13. Removing the gearcase cover. Figure 14. Grease seal and lower guide plate removal. Shindaiwa Inc. 1998... - Page 13 STEP 6. Remove the cutters and guide bar as an assembly (Figure 15). Gearcase HT230 Shown HT2330 Figure 15. Removing the upper con-rod and cutters and guide bar assembly. Removing the STEP 1. Temporarily lock the pinion shaft by...
- Page 14 HT2343 (Figure 19). Figure 18. Removing gearcase-cover bearings. Puller with The gearcase should now be Slide completely disassembled Hammer HT2345 Figure 19. Using a bearing puller. Shindaiwa Inc. 1998...
- Page 15 Section 8, Cutters . Cover or housing damaged Guide plate scoring Worn or damaged bearings Connecting rod wear Clutch drum threads damaged HT2329B Gear teeth damaged or missing/wear or pitting to the cam lobe Figure 20. Inspecting gearcase components. Shindaiwa Inc. 1998...
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Page 16: Gearcase Reassembly
For a complete listing of recommended torque specifications, see the Appendix. Bearing Bearing Installations (Figure 21) Shindaiwa recommends expanding each bearing bore with a heat gun or other appli- Heat ance set to preheat the bore to approx. 100˚C HT2335A (212˚F). - Page 17 170-190kgf-cm. Clutch Tool Lubrication and Inspection (Figure 26) Prior to gearcase cover installation, hand-pack the gearcase to approx. 50-70% capacity with Shindaiwa p/n 37-57 Gearcase Lube or 10mm equivalent high quality lithium-based grease Open End Wrench (see Section 9).
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Page 18: Cutter Service
Figure 29. Removing the the Protector. Guide Plate. Locking Nut The cutter assembly should now be completely disassembled. HT2355 Guide Bar Washer Mounting Shoulder Studs Bolt Shoulder Bolt Slot Upper Cutter Figure 30. HT230 Cutters and Guide Bar Lower Cutter Shindaiwa Inc. 1998... - Page 19 The cutter assembly should now be DH2306B completely disassembled. Figure 31. Removing the Front Handle and Shield. Locking Nut Guide Bar Mounting Studs Washer Upper Cutter Shoulder Bolt Slot Washer Lower Cutter Shoulder Bolt Figure 32. DH230 Cutters and Guide Bar Shindaiwa Inc. 1998...
- Page 20 Check for damaged cutter Check for damaged teeth drive pins HT2340 HT230 Shown Check for damaged shoulder bolts Check for damaged or worn slots "Dished" appearance Figure 33. Inspecting the cutter and guide bar (shown inverted).
- Page 21 Lower 6 x 20mm Cutter Protector 6 x 20mm Upper Cutter Washer Adjust all shoulder bolts Shoulder Bolt 6 x 32mm HT2328 6 x 25mm Figure 34. Reassembling the HT230 Cutter and Guide Bar. Shindaiwa Inc. 1998...
- Page 22 Upper Cutter Cutter Support Bracket Install cutter assembly onto 6 mm x 20 mm hedge trimmer Adjust all shoulder bolts Lower Install the Cutter cutter support bracket HT2361 Figure 35. Reassembling the DH230 Cutter and Guide Bar. Shindaiwa Inc. 1998...
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Page 23: Cutter And Gearcase Maintenance
(Figure 37). Figure 37. Grinding and sharpening the cutter bevels. STEP 4. HT230 ONLY. Use a rough grinding stone held at a 35° angle to restore the HT230 ONLY original bevel to the cutter tips (Figure 38). - Page 24 Over-lubrication could cause the gear- case to run slower (and hotter) than normal. In addition, over-lubrication could HT230 cause excess grease to leak past the felt Hand-pack gearcase SHOWN seal in the gearcase. to 50-70% capacity Figure 43. Hand-packing the gearcase. Shindaiwa Inc. 1998...
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Page 25: Appendix
Thread Sealant p/n 99909- p/n 22155-96240 p/n 20000-96104 p/n 22155-96531 (4mm) p/n 13-60 20230 p/n 22155-96540 (5mm) Figure 44. Special tools recommended for servicing the Shindaiwa HT230 and DH230 Hedge Trimmer. Torque Values 70-100 kgf-cm 50-70 70-100 kgf-cm 70-100 kgf-cm... -
Page 26: Metric Conversions
Temperature in Temperature in F - 32 x 5/9 (.555) C x 9/5 (1.8) + 32 Miscellaneous 1 mph = 1.6 km/hr 1 km/hr = .625 mph 1 mpg = .425 km/liter 1 km/liter = 2.35 mpg Shindaiwa Inc. 1998... - Page 27 Notes Shindaiwa Inc. 1998...
- Page 28 Shindaiwa Inc. 11975 SW Herman Road P.O. Box 1090 Tualatin, OR 97062 Phone 503 692-3070 FAX 503 692-6696 www.shindaiwa.com 1998 Shindaiwa Inc. Form No. 61305 Printed in U.S.A. Shindaiwa is a registered trademark of Shindaiwa Inc.