Part of the Kubota Repair Manuals.
This Kubota Workshop Manual covers the RCK60-30BB and RC72-30BB mid-mount mower decks, the cutting units fitted to Kubota tractors. Across 81 pages it is the factory service documentation, organised into Supplementary Information, Safety, General, Maintenance, and Mower sections covering setup, service specifications, and full servicing of the deck.
The manual lists Kubota's own figures, including a gear box oil capacity of 0.36 L using SAE 90 API GL5 gear oil, blade bolt torque of 102 to 117.6 N·m, a cutting height range of 38 to 102 mm, and bevel gear backlash of 0.13 to 0.25 mm. Maintenance schedules, tightening torques, troubleshooting charts, and power transmission diagrams let an owner or mechanic replace blades, service the gear box, set backlash, and keep the deck cutting cleanly.
It downloads as a searchable, printable PDF.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Supplementary Information | 3-6 | Model Name and Related Manuals, Manual Applicability, Model Name |
| Safety | 7-15 | Safety First, Working Precautions, Preparing for Emergencies, Working Cautions, Starting Machine Safely, Preventing Fires, Preventing Acid Burns, Avoiding High Pressure Fluid |
| General | 16-48 | Tightening Bolts and Nuts, Applying Thread-Locking Fluid, Installing Circlips, Installing Spring Pins, Handling Split Pin, Handling Chain Joint and Split Pin |
| Maintenance | 49-63 | Maintenance Check List, Lubricants, Check and Maintenance, Checking and Changing the Gear Box Oil, Greasing, Checking and Replacing the Blade, Cleaning the Mower Deck |
| Mower | 64-78 | Mechanism, Structure of Power Transmission of Mower, Structure of Lifting Mechanism of Mower, Servicing, Troubleshooting for Mower, Service Specifications for Mower |
| Contact Information | 81 | Editor, Address, Phone, Fax, E-Mail, Kubota Corporation, Printed in Japan, Code No |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Gear box mounting bolt and nut (M12 standard type) torque | 77.4 to 90.2 N·m | p. 70 |
| Blade bolt torque | 102.9 to 117.7 N·m | p. 70 |
| Gear box oil capacity | 0.36 L | p. 52 |
| Gear box oil type | SAE 90 API GL5 gear oil | p. 52 |
| Blade bolt tightening torque | 102 to 117.6 N·m | p. 59 |
| Bevel gears backlash (Service specification) | 0.13 to 0.25 mm | p. 69 |
| Bevel gears backlash (Service limit) | 0.4 mm | p. 69 |
| Cutting height range | 38 to 102 mm | p. 32 |
| RCK60-30BB | ||
| Pinion shaft turning force, RCK60-30BB | Less than 56 N | p. 69 |
| Weight (approximation), RCK60-30BB | 170 kg | p. 32 |
| RC72-30BB | ||
| Pinion shaft turning force, RC72-30BB | Less than 118 N | p. 69 |
| Weight (approximation), RC72-30BB | 210 kg | p. 32 |
