Kioti Tractor Torque Specs

OEM wheel and rim-bolt torque specifications for Kioti's CS, RX, and NX compact and utility tractor lines, cited to the exact Daedong-USA (KIOTI Tractor) operator's manual. The NX4510/NX5510 manual disagrees with itself between chapters — both figures are shown rather than picking one. The current CK and DK-series lineup is not covered here — their manuals ARE hosted by Kioti USA, but the specific older model numbers checked in this pass (CK2610/CK3510/CK4010, DK4510/DK5010) were not found among them.

Quick-reference torque specs

Front Wheel Bolt/Nut — CS2510 / CS2520 88 N·m (8.97 kgf·m. Single value (not a range) — bolt and nut carry the same spec. Identical in both the CS2510 and CS2520 manuals. This tractor's wheel is integrated with the rim (no separate rim bolt).) Source: Daedong-USA, Inc., KIOTI Operator's Manual CS2210/CS2510 (dated 2019-03-29) p.7-20: "Front wheel Bolt 88 n·m (8.97 kgf·m) / Front wheel Nut 88 n·m (8.97 kgf·m)"; identically worded in the CS2220H(S)/CS2520H(S) manual (dated 2020-07-13) p.7-22. Rear Wheel Bolt/Nut — CS2510 / CS2520 122 N·m (12.44 kgf·m. Single value; bolt and nut carry the same spec. Identical in both manuals.) Source: Daedong-USA, Inc., KIOTI Operator's Manual CS2210/CS2510 (2019-03-29) p.7-20: "Rear wheel Bolt 122 n·m (12.44 kgf·m) / Rear wheel Nut 122 n·m (12.44 kgf·m)"; identically worded in the CS2220H(S)/CS2520H(S) manual p.7-22. Front Wheel Bolt/Nut — RX6620 / RX7320 196-225 N·m (144-166 lb-ft) (20-23 kgf·m. Consistent between the ch.4 wheel/tire table and the ch.7 maintenance table — no internal conflict on this model, unlike the NX line below.) Source: Daedong-USA, Inc., KIOTI Operator's Manual RX6020/6620/7320/7620 (dated 2013-11-04) p.7-20: "Front wheel Bolt/Nut 196 ~ 225 N·m / 144 ~ 166 lbf-ft / 20 ~ 23 kgf·m". Rear Wheel Bolt/Nut — RX6620 / RX7320 275-319 N·m (203-235 lb-ft) (28-32.5 kgf·m. Consistent between ch.4 and ch.7 tables.) Source: Daedong-USA, Inc., KIOTI Operator's Manual RX6020/6620/7320/7620 (2013-11-04) p.7-20: "Rear wheel Bolt/Nut 275 ~ 319 N·m / 203 ~ 235 lbf-ft / 28 ~ 32.5 kgf·m". Rim Bolt/Nut (rim-to-disc, separate from the wheel/hub bolt above) — RX6620 / RX7320 260-304 N·m (192-224 lb-ft) (26.5-31 kgf·m. Genuinely a SEPARATE fastener from the wheel bolt/nut above — the manual's diagram distinguishes "(1) Wheel Nut/Bolt" from "(2) Rim Bolt" (rim/disc tread-adjustment assembly). One spec covers both front and rear rim bolts.) Source: Daedong-USA, Inc., KIOTI Operator's Manual RX6020/6620/7320/7620 (2013-11-04) p.4-64: "RIM bolt and nut torque — Tightening torque of rim bolt and nut: Front & Rear 259.9~304 N·m / 26.5~31 kgf·m / 191.7~224.2 lb·ft". Engine Oil Drain Plug (×2) — RX6620 / RX7320 4-4.5 kgf·m (The manual prints ONLY kgf·m for this figure — no N·m or lb-ft equivalent is given, unlike the wheel-torque tables, so no conversion is shown here (converting would be an invented figure the manual doesn't print).) Source: Daedong-USA, Inc., KIOTI Operator's Manual RX6020/6620/7320/7620 (2013-11-04) p.7-13: "Be sure to install the drain plugs(X2) to the oil pan securely. Allowable torque: 4~4.5kgf.m". Front Wheel Bolt(Nut) — NX4510 / NX5510, ch.4 wheel/tire table value 166.7-186.3 N·m (17-19 kgf·m. INTERNAL MANUAL CONFLICT: this same manual's ch.7 maintenance table gives a DIFFERENT, lower figure for the front wheel — see the next row. Both are printed in the same document and do not reconcile; Kioti does not explain the discrepancy.) Source: Daedong-USA, Inc., KIOTI Operator's Manual NX4510/5010/5510/6010 (TE120 cabin/ROPS manual) p.4-73: "Tightening torque of wheel bolt (nut) 166.7~186.3 N·m (17~19 kgf·m)". Front Wheel Bolt / Nut — NX4510 / NX5510, ch.7 maintenance table value Bolt 78-90 N·m (57-67 lb-ft) / Nut 63-73 N·m (46-54 lb-ft) (INTERNAL MANUAL CONFLICT with the ch.4 value above (166.7-186.3 N·m) — this table also splits bolt and nut into two different values, where ch.4 gave one combined "bolt (nut)" figure. Do not average these; check which section your dealer/manual edition treats as authoritative, or confirm directly with Kioti.) Source: Daedong-USA, Inc., KIOTI Operator's Manual NX4510/5010/5510/6010 (TE120, ch.7 revision 2018-04-03) p.7-23: "Front wheel Bolt 57-67lbf.ft (78~90 N.m) / Front wheel Nut 46-54 lbf.ft (63~73 N.m)". Rear Wheel Bolt(Nut) — NX4510 / NX5510, ch.4 wheel/tire table value 274.6-318.7 N·m (28-32.5 kgf·m. INTERNAL MANUAL CONFLICT — see the next row for the ch.7 maintenance-table value, which is different and lower.) Source: Daedong-USA, Inc., KIOTI Operator's Manual NX4510/5010/5510/6010 (TE120) p.4-74: "Tightening torque of wheel bolt (nut) 274.6 ~ 318.7 N·m (28 ~ 32.5 kgf·m)". Rear Wheel Bolt/Nut — NX4510 / NX5510, ch.7 maintenance table value 225 N·m (166 lb-ft) (INTERNAL MANUAL CONFLICT with the ch.4 value above (274.6-318.7 N·m) — this ch.7 figure applies to both bolt and nut equally, unlike the front wheel's split bolt/nut values. Both figures are printed in the same document; Kioti does not explain the discrepancy.) Source: Daedong-USA, Inc., KIOTI Operator's Manual NX4510/5010/5510/6010 (TE120, ch.7 revision 2018-04-03) p.7-23: "Rear wheel Bolt 166 lbf.ft (225 N.m) / Rear wheel Nut 166 lbf.ft (225 N.m)". Always confirm against your machine’s service manual.

Sequence-required & verify-against-manual fasteners

These structural or safety-critical fasteners require the machine-specific tightening sequence or a service-manual value rather than a single number: Rim Bolt (rim-to-disc, distinct from the wheel bolt above) — NX4510 / NX5510 — See service manual (The manual's own diagram labels a separate "Rim Bolt" distinct from the wheel bolt/nut — "(1) Bolt (2) Rim Bolt (3) Disc" — confirming the NX line does have a split rim-to-disc fastener like the RX line above. But no torque figure is printed for the rim bolt anywhere in this manual; only the wheel bolt(nut) figures above carry numbers.) Source: Daedong-USA, Inc., KIOTI Operator's Manual NX4510/5010/5510/6010 (TE120) p.4-73 diagram callout: "(1) Bolt (2) Rim Bolt (3) Disc" — no torque value printed for item (2). Current CK and DK-series (CK2620/2640, CK3520/3540, CK4020/4040, DK4220–DK6020) — See service manual (Not covered on this page. Kioti USA DOES host manuals for the current CK/DK lineup — but two specific older model numbers checked in this pass (CK2610/CK3510/CK4010 and DK4510/DK5010) are not present anywhere on kioti.com's owner-manuals list or product pages; they appear to be a discontinued prior generation with no manual currently hosted by Kioti USA. The current CK/DK lineup uses different model numbers entirely and was not substituted per the no-sibling-inference rule.) Source: kioti.com/owner-manuals — CK2610/CK3510/CK4010 and DK4510/DK5010 absent; current lineup (CK2620/2640, CK3520/3540, CK4020/4040, DK4220/4520/4720/5020/5320/5520/6020) confirmed present but not the same models.

Model coverage

CS2510 / CS2520 (CS2210/2510 and CS2220H(S)/2520H(S) operator's manuals), Compact Tractor; RX6620 / RX7320 (RX6020/6620/7320/7620 combined operator's manual, 2013), Utility Tractor; NX4510 / NX5510 (NX4510/5010/5510/6010 combined operator's manual), Utility Tractor.

Related lookups

Loading interactive lookup…