Part of the Kubota Parts Manuals.
This Kubota RCK60-30B parts catalog is the factory illustrated parts list for the RCK60-30B mid-mount mower deck. It gives you exploded diagrams and Kubota part numbers for every assembly on the deck, from the universal joint and bevel gear case through the blade, pulley holder, tension pulley, mower deck shell, gauge wheels, discharge cover, and the lift linkage and lift arm hardware.Use it to identify the exact replacement part before you order, cross-check reference numbers against the diagram, and confirm quantities and interchangeability by serial number. Each section pairs a numbered drawing with the matching part table, so you can trace a worn component to its Kubota part number without guesswork.This is a parts reference, not a step-by-step repair procedure. It suits owners and mechanics servicing wear items on the deck drivetrain, blade spindle, and height-adjustment linkage.
What's Inside This Kubota RCK60-30B Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Universal Joint | 3-4 | Quick Yoke, PTO Yoke, Yoke Shaft, Joint Yoke, Cross Joint Assembly |
| Bevel Gear Case | 5-6 | Pinion Shaft, Bevel Gear Kit, Bevel Gear Shaft, Center Pulley, Case Stay |
| Pulley Holder | 7-8 | Center Pulley Holder, Ball Bearings, Oil Seal, Extension Pipe, Spline Boss, Dust Cover, Collar |
| Blade | 9-10 | Pulley Holder, Blade Shaft, Ball Bearings, Oil Seal, Pulley, Spline Boss, Extension Pipe |
| Tension Pulley | 11-12 | Multi Belt, Tension Arm, Tension Bushing, Tension Collar, Tension Cover, Tension Spring |
| Mower Deck | 13-14 | Mower Deck Assembly, Caution Label, Danger Label, Left Cover, Right Cover, Rubber Plate, Clevis Pin, Hairpin Clip |
| Front Gauge Wheel | 15-16 | Gauge Wheel Assembly, Bushing, Wheel Collar, Gauge Holder, Holder Shaft, Holder Collar |
| Rear Wheel | 17-18 | Rear Wheel Arm, Rear Wheel Bracket, Wheel Assembly, Rear Wheel Shaft, Guide Plate, Rear Wheel Lever |
| Discharge Cover | 19-20 | Roller Stay Support, Anti-Scalp Roller, LH Roller Shaft, Discharge Pin, Discharge Spring |
| Linkage | 21-22 | LH Bracket, Anti-Scalp Roller, Front Gauge Pin, Lever Grip, Front Link, Spacer Tube |
| Lift Linkage | 23-24 | LH Front Stay, Lift Shaft, LH Lift Arm, LH Stopper Plate, Lift Link, Link Bushing |
| Lift Arm | 25-26 | Long Lift Rod, Clevis Pin, Plain Washers, Turnbuckle, LH Lift Arm, RH Lift Arm |
| Stopper | 27-29 | Stopper Plate, Lock Nut, LH Loader Stopper, Loader Stopper Pin, Snap Pin, Plain Washers |
| Accessories and Service Parts | 30 | Operator's Manual |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Shim thickness | 0.2mm | p. 6 |
| Roller anti-scalp dimensions | 3.0S inches | p. 20 |
| Belt length | 119in. | p. 12 |
| Wheel assembly dimensions | 6.25*3 inches | p. 16 |
| Bolt thread size (Pulley Holder) | M12*1.25 | p. 8 |
| Nipple Grease thread size (Blade) | M6*1.0 | p. 10 |
| Bushing I.D. (Front Gauge Wheel) | 0.75 I.D. | p. 16 |
| Assy Wheel GA size | 6.25*3 | p. 16 |
Kubota RCK60-30B Common Problems This Manual Covers
Deck will not engage or slips
The deck drive can stop turning or slip under load when the universal joint, drive yokes, or coupler wear or seize. The Universal Joint section lists every drivetrain part and its Kubota number so you can spot the worn link.
Manual Section: Universal Joint p. 3Weak drive from the gear case
Loss of power to the blades often traces to the bevel gear case, its pinion shaft, gears, or bearings. The Bevel Gear Case parts list identifies the internal components and shim sizes to check during a rebuild.
Manual Section: Bevel Gear Case p. 5Excessive vibration while mowing
A bent or unbalanced blade is a common source of shaking and noise on this deck. Use the Blade section to confirm the correct blade part number and mounting hardware before replacement.
Manual Section: Blade p. 9Belt slips or squeals
Belt tension and idler wear cause slipping and squealing after short use. The Tension Pulley section covers the idler arm, pulley, spring, and related parts that keep belt tension correct.
Manual Section: Tension Pulley p. 11Grass clogs under the deck
Material buildup and poor discharge point to a worn or damaged discharge cover and anti-scalp rollers. The Discharge Cover section lists the cover, pins, springs, and rollers for that assembly.
Manual Section: Discharge Cover p. 19Inconsistent deck height or lift
Uneven cut and erratic height changes often come from wear in the lift links and adjustment points. The Lift Linkage section maps the shafts, arms, links, and bushings used to raise and level the deck.
Manual Section: Lift Linkage p. 23Frequently Asked Questions
Which mower does this catalog cover?
It is the parts catalog for the Kubota RCK60-30B mid-mount mower deck, including its variants RCK60-30BA and RCK60-30BB. It covers deck components only, not the tractor.
Does it include exploded diagrams and Kubota part numbers?
Yes. Every assembly pairs a numbered exploded drawing with a matching parts table listing reference numbers, Kubota part numbers, quantities, and interchangeability notes so you can order the exact part.
Where do I find the deck drive and gearbox parts?
The Universal Joint section covers the drive shaft and yokes, and the Bevel Gear Case section covers the gearbox internals, shafts, and shims. Start with the Universal Joint section. p. 3
Which section covers the blade and belt?
The Blade section lists the blade and its mounting hardware, and the Tension Pulley section covers the belt idler, pulley, and spring. Use the Blade section for cutting components. p. 9
Is this Kubota RCK60-30B Parts Catalog a digital download?
A 30-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View it on a computer, tablet, or phone with no shipping wait.
Is this Kubota RCK60-30B Parts Catalog printable?
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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