Describing a worn part to a dealer over the phone rarely ends with the right box on your doorstep. This Kubota RCK60-30B Parts Catalog points you straight to the factory number for your 60-inch mid-mount mower. Exploded-view diagrams cover every major assembly: universal joint, bevel gear case, blade and pulley hardware, mower deck, gauge wheels, discharge cover, linkage, lift arm, and stopper. Each diagram pairs with a parts list carrying OEM reference numbers, quantities, serial-number breakpoints, and interchange codes, so you can confirm which version fits your machine. The universal joint assembly lists at 3.75 kgf and the drive belt runs 119 inches, the kind of detail that separates the right part from a costly guess. Bookmarked by assembly, the file opens on any device: tap a section, read the number, and order with confidence.
What's Inside This Kubota RCK60-30B Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Universal Joint | 3-4 | - |
| Bevel Gear Case | 5-6 | - |
| Pulley Holder | 7-8 | - |
| Blade | 9-10 | - |
| Tension Pulley | 11-12 | - |
| Mower Deck | 13-14 | - |
| Front Gauge Wheel | 15-16 | - |
| Rear Wheel | 17-18 | - |
| Discharge Cover | 19-20 | Support Stay Roller, Roller Anti-Scalp, Shaft Roller LH, Cover Discharge, Pin Discharge, Spring Discharge |
| Linkage | 21-22 | Bracket LH B, Roller Anti-Scalp, Pin Gauge Front, Grip Lever, Link Front 1, Tube Spacer |
| Lift Linkage | 23-24 | Stay Front LH, Shaft Lift, Arm Lift 2 LH, Plate Stopper LH, Link Lift, Bushing Link |
| Lift Arm | 25-26 | Rod Lift L, Pin Clevis, Washer Plain, Turnbuckle, Arm Lift 1 LH, Arm Lift 1 RH |
| Stopper | 27-29 | Plate Stopper, Nut Lock, Loader LH, Pin Stopper Loader, Pin Snap, Washer Plain |
| Accessories and Service Parts | 30 | - |
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 |
| JOINT UNIVERSAL weight | 3.75 kgf | p. 4 |
| CASE BEVEL GEAR weight | 3.82 kgf | p. 6 |
| BOLT thread size (PULLEY HOLDER) | M12*1.25 | p. 8 |
| HOLDER PULLEY SIDE weight | 2.35 kgf | p. 10 |
| 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 |
| ARM REAR WHEEL weight | 2.35 kgf | p. 18 |
Kubota RCK60-30B Common Problems This Manual Covers
Kubota RCK60-30B deck won't engage or slips under load, PTO drive feels weak p. 3
Open the exploded view on page 3 and cross-reference the parts list on page 4 to spot which universal joint components are worn or damaged. The Joint Universal assembly weighs 3.75 kgf. If yours feels lighter or rattles, internal yokes or crosses are likely gone. Pull part numbers from the page 4 list, confirm your serial number range fits, then order OEM replacements.
Manual Section: Universal JointExcessive vibration or loud knocking noise during mowing operation p. 9
Check the Blade exploded view on pages 9-10. Rule out a bent or unbalanced blade first: locate the blade part number on page 10 and verify it matches your deck configuration. Also pull the Tension Pulley parts list on page 11, since a worn pulley or idler bracket causes rhythmic knock at deck speed. The grease nipple thread at the blade spindle is M6x1.0 (page 10); if it's stripped or missing, the spindle has been running dry.
Manual Section: BladeCan't identify the right discharge cover replacement part, unsure which roller fits p. 19
Go to the Discharge Cover exploded view on page 19. The parts list on page 20 breaks out the Cover Discharge, Pin Discharge, Spring Discharge, and Roller Anti-Scalp (size 3.0S). Match each part number to your serial range before ordering; the roller and cover are two separate line items and often get confused. If the discharge pin or spring is missing, the cover flaps loose and speeds up wear on the cover body itself.
Manual Section: Discharge CoverDeck height is inconsistent side to side, lift function doesn't hold position evenly p. 25
Start with the Lift Arm parts diagram on page 25. The Pin Clevis is sized 1/2x1-1/4 (page 26); a worn or undersized clevis pin lets the arm float. Then check Lift Linkage on page 23, where the Bushing Link, Arm Lift 2 Lh, and Shaft Lift are the first components to wear and cause height drift. Pull part numbers for both sides (Lh and Rh are separate SKUs) and compare against the exploded view to confirm nothing is substituted incorrectly.
Manual Section: Lift ArmUneven cut, one side of the deck rides higher, anti-scalp rollers look different left and right p. 21
Compare the Linkage parts diagram on page 21 against your deck. The Roller Anti-Scalp on the linkage side and the one on the Discharge Cover (page 20) are both listed as 3.0S but are separate part numbers in their respective sections. A mix-up between them causes height asymmetry. Also check the Front Gauge Wheel bushing I.D. on page 16: worn bushings (nominal 0.75 I.D.) let the wheel spindle rock and throw off deck level on one side.
Manual Section: LinkageBevel gear case hard to source, unsure which shim thickness to specify when ordering p. 5
Refer to the Bevel Gear Case parts list on page 5. The assembled case weighs 3.82 kgf (page 6); use this as a quick sanity check on any used unit before buying. The shim at page 6 is listed at 0.2mm, a separate line-item part number, not bundled with the case. Order shims and the case separately, and confirm both part numbers against your serial range in the index before purchasing.
Manual Section: Bevel Gear CaseFrequently Asked Questions
What are the replacement specifications for universal joint?
The JOINT UNIVERSAL carries part number K5763-32030 and weighs 3.75 kgf (8.25 lb). Related components in the assembly are the YOKE QUICK (K5763-31150), KIT COUPPLER REPAIR (K5763-31220), YOKE PTO (K5651-31130), YOKE SHAFT (K5763-31140), and YOKE JOINT (K5651-31170).
What are the replacement specifications for bevel gear case?
The CASE BEVEL GEAR has part number K5761-33115 and weighs 3.82 kgf (8.404 lb). Paired with it, the SHAFT BEVEL GEAR (K5763-33500) weighs 0.55 kgf (1.21 lb), and the KIT GEAR BEVEL (K5763-33320) weighs 0.45 kgf (0.99 lb).
How do I diagnose excessive vibration or knocking noise during mowing?
To address blade vibration or knocking noise, check the Blade section on pages 9-10. Verify the blade part number matches your deck configuration and inspect the Tension Pulley parts list on page 11 for a worn pulley or idler bracket. The grease nipple thread at the blade spindle is M6x1.0 (page 10); a stripped or missing nipple means the spindle has been running dry.
Which discharge cover and anti-scalp roller parts should I order for the RCK60-30B?
For the discharge cover, consult pages 19-20. The parts list breaks out the Cover Discharge, Pin Discharge, Spring Discharge, and Roller Anti-Scalp (size 3.0S) as separate line items. Match each part number to your serial range before ordering; the roller and cover are separate SKUs and are often confused. A missing discharge pin or spring causes the cover to flap and accelerates wear on the cover body.
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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