Order the right Kubota part the first time across all three deck widths. This RC40-G, RC44-G, and RC48-G Parts Catalog runs eight pages and breaks down every replaceable component, from driveline joints to rear wheel brackets. Illustrated parts lists cover the Joint, Gear Box, Spindle and Blade, Tension Pulley, Deck and Deflector, Rear Wheel, and Linkage assemblies, with each line item carrying its own factory part number. Exploded views call out the yoke, cross assembly, spindle shaft, bearing, and pulley as separate entries. The Spindle and Blade section lists holder, blade, shaft, bearing, and fasteners individually, so a single failed piece is all you have to buy, not the whole assembly. Bookmarks let you jump to any section, find your number, and place the order.
What's Inside This Kubota RC40-G, RC44-G, RC48-G Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Joint | 3 | Yoke, Cross Assembly, Bolt, Nut, Pin, Shaft |
| Spindle and Blade | 4 | Spindle Holder, Blade, Spindle Shaft, Bearing, Pulley, Bolt |
| Tension Pulley | 5-6 | Tension Screw, Spring, Bearing, Bolt, Bracket |
| Rear Wheel | 7-8 | Wheel Hub, Axle, Bolt, Nut, Washer, Bracket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Outer blades bolt torque | 12.6 to 15 kgf-m (91~109 ft-lbs) | p. 1 |
| RC40-G, RC48-G | ||
| Tension screw spring length | 150 mm (5.9 in.) | p. 1 |
| RC44-G | ||
| Tension screw spring length | 135 mm (5.3 in.) | p. 1 |
Kubota RC40-G, RC44-G, RC48-G Common Problems This Manual Covers
Can't find the correct outer blade bolt and plain washer part numbers for a Kubota RC40-G deck p. 4
Check the Spindle and Blade parts number list on page 4. Locate the exact bolt and plain washer needed for your serial number. When installing these new parts, verify the outer blades bolt torque reaches 12.6 to 15 kgf-m (91 to 109 ft-lbs) as specified on page 1.
Manual Section: Spindle and BladeUnsure which spring part number fits the tension pulley assembly after the old one snapped p. 5
Inspect the tension pulley parts diagram on page 5 to identify the correct spring for your model. On an RC48-G deck, set the new tension screw spring length to 150 mm (5.9 in.) during installation, as page 1 details.
Manual Section: Tension PulleyNeed the exploded view to order missing yoke and cross assembly components for the driveline p. 3
Review the drivetrain parts diagram on page 3 and match your broken yoke, cross assembly, and pins to the reference numbers shown. On an RC44-G, recheck that the tension screw spring length measures 135 mm (5.3 in.) after assembly.
Manual Section: JointMissing wheel hub and axle hardware part numbers for the rear trailing wheels p. 7
Pull up the rear wheel assembly diagram on page 7, then find the axle, nut, and washer reference numbers needed to rebuild the hub. Before the mower goes back into service, confirm the outer blades bolt torque sits at 12.6 to 15 kgf-m (91 to 109 ft-lbs).
Manual Section: Rear WheelFrequently Asked Questions
What torque specifications are listed for outer blade bolts?
Tighten the outer blade bolts to 12.6 to 15 kgf-m (91 to 109 ft-lbs) of torque. The manual gives this figure for the RC44-G model during attachment of the outer blades.
Where do I find the correct outer blade bolt and washer part numbers for my RC40-G deck?
Refer to the Spindle and Blade parts number list on page 4 to find the exact outer blade bolt and plain washer part numbers for your serial number range. Torque the new blade bolts to 12.6 to 15 kgf-m (91 to 109 ft-lbs) after installation.
What spring length is required for the RC48-G tension pulley assembly?
The tension pulley spring part number is listed in the tension pulley parts diagram on page 5. For an RC48-G deck, set the new tension screw spring length to 150 mm (5.9 in.) during installation as specified on page 1.
Which page shows the yoke and cross assembly part numbers for the RC44-G driveline?
Consult the drivetrain parts diagram on page 3 to identify the correct yoke, cross assembly, and pins by reference number. For an RC44-G, confirm the tension screw spring length measures 135 mm (5.3 in.) after assembly as specified in the manual.
How quickly can I access this manual after buying?
Your 8-page searchable PDF downloads the moment checkout completes. Open it on a laptop, tablet, or phone, then bring it straight to the shop floor.
Can I print this manual?
Yes. Print as many copies as you like; there are no restrictions. Plenty of mechanics just print the section they need and keep it at the workbench.
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