Part of the Kubota Repair Manuals.
This Kubota Workshop Manual covers the RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC, RC60-24BR, and RC60-27BR rotary mower decks. Across 56 pages it gives servicing personnel the mechanism, service, and maintenance information for this family of side and rear discharge mowers.The manual is organized into General, Mechanism, and Servicing parts. You get mower identification, lubricants, tightening torques, and the maintenance check list, then the power transmission and lifting mechanism, and finally troubleshooting, servicing specifications, and checking, disassembling, and assembling procedures.Owners and independent shops use it to work the deck with factory values, from mower blade screw torque and bevel gear backlash to blade lengths and cutting widths for each model. Both the cylinder-lift and 3-point hitch lift versions are covered.
What's Inside This Kubota RCK & RC Mower Decks Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 11-32 | Mower Identification, Lubricants, Tightening Torques, Maintenance Check List |
| Mechanism | 33-37 | Power Transmission, Lifting Mechanism (Mower Lift Cylinder Type, 3-Points Hitch Lift Type) |
| Servicing | 38-56 | RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC (Side Discharge Mower), RC60-24BR, RC60-27BR (Rear Discharge Mower) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Mower blade screw tightening torque | 98.1 to 117.7 N-m (10.0 to 12.0 kgf-m, 72.3 to 86.8 ft-lbs) | p. 41 |
| Mower blade replacement condition | Replace if worn or cracked | p. 42 |
| Mower belt replacement condition | Replace if surface split at more than 3 positions | p. 42 |
| Center pulley holder screw tightening torque (Standard type / Reamer type) | 77.6 to 90.2 N-m (8.0 to 9.2 kgf-m, 57.1 to 66.5 ft-lbs) | p. 41 |
| Outer pulley mounting nut tightening torque | 166.7 to 186.3 N-m (17.0 to 19.0 kgf-m, 123.0 to 137.4 ft-lbs) | p. 41 |
| Pulley holder mounting screw tightening torque | 77.4 to 90.2 N-m (7.9 to 9.2 kgf-m, 57.1 to 66.5 ft-lbs) | p. 41 |
| RCK54-24B-EC | ||
| Blade length | 475 mm (18.7 in.) | p. 10 |
| RC60-24BR | ||
| Tension spring length (L) | 160.0 mm (6.3 in.) | p. 51 |
| RCK54-24B-EC, RCK60-24B-EC | ||
| Bevel Gears in Gear Box Backlash (Factory Specification) | 0.10 to 0.20 mm (0.0039 to 0.0079 in.) | p. 40 |
| RCK60-27B-EC, RC60-24BR, RC60-27BR | ||
| Bevel Gears in Gear Box Backlash (Factory Specification) | 0.13 to 0.25 mm (0.0051 to 0.0098 in.) | p. 40 |
| RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC | ||
| Center pulley holder oil seal replacement | Replace oil seals with new ones during reassembly | p. 47 |
| RC60-27BR | ||
| Tension spring length (L) | 245.0 mm (9.7 in.) | p. 51 |
Kubota RCK & RC Mower Decks Common Problems This Manual Covers
Blades will not engage or disengage
The PTO-driven blades fail to drive correctly from a clutch or linkage adjustment issue, a damaged belt, or a seized spindle. The Mechanism section covers the power transmission so you can trace how drive reaches the blades.
Manual Section: Mechanism p. 33Excessive vibration and noise
A bent blade, worn spindle bearings, or loose blade hardware produces vibration and an uneven cut. The Servicing section covers troubleshooting and the checking and disassembling steps to find and replace the worn part.
Manual Section: Servicing p. 38Poor cut quality or scalping
Uneven cutting or scalping usually traces to deck setup, dull blades, or worn height-control parts rather than a complex failure. The General section includes setting up the mower and the maintenance checks that keep cut quality right.
Manual Section: General p. 11Deck belt slipping or smoking
Improper belt tension, misaligned pulleys, or debris buildup makes the belt slip, smoke, or wear fast. The Servicing section covers belt and tension spring checking, with the replacement condition when the surface splits.
Manual Section: Servicing p. 38Worn or cracked blades
Blades dull, wear, and crack with hours and debris impacts, hurting cut quality and balance. The Servicing section gives the blade replacement condition and the mower blade screw tightening torque for refitting.
Manual Section: Servicing p. 38Low or leaking gear box oil
The deck gear box holds a small oil charge, so a low level or leak leads quickly to wear. The General section covers lubricants and the maintenance check list that keep the gear box serviced.
Manual Section: General p. 11Frequently Asked Questions
Which mower decks does this manual cover?
It covers the Kubota rotary mowers RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC, RC60-24BR, and RC60-27BR, including both the side discharge and rear discharge models across 56 pages.
Does it give the blade bolt torque?
Yes. The Servicing section lists the servicing specifications and tightening torques, including a mower blade screw torque of 98.1 to 117.7 N-m and the outer pulley mounting nut torque. p. 38
Does it cover the tractor as well?
No. This manual covers the rotary mower deck family only, including its mechanism, servicing specifications, and repair procedures. Tractor and engine work belongs to the separate machine manuals.
Where do I find the cutting widths and blade lengths?
The General section includes mower identification and specifications. Cutting width is 1372 mm on the RCK54-24B-EC and 1524 mm on the RCK60 decks, with blade lengths listed per model. p. 11
How will I receive this Kubota RCK54-24B-EC & variants Workshop Manual?
Immediate download of the complete 56-page searchable Workshop Manual. Access it on any device, laptop at your desk or phone in the field.
Am I able to print pages from this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
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