Wheels and TiresGeneral

Generals ....................................................... WT -2Specifications ............................................... WT -3Troubleshooting ............................................ WT -4

Wheel and TireComponents ................................................. WT -5Removal ....................................................... WT -6Installation .................................................... WT -7Inspection ..................................................... WT -9

Tube Type TireComponents ................................................. WT -11Disassembly ................................................. WT -12Inspection ..................................................... WT -14Reassembly .................................................. WT -14

Tubeless TireComponents ................................................. WT -17Disassembly ................................................. WT -17Reassembly .................................................. WT -18

GeneralGenerals[Generals]The wheel and tire are assembled in a body and rotatedtogether.By the air pressure inside of the tire, the tire cansustain the vehicle's weight. The air pressure acts as abuffer so as to absorb the shocks from the road surface.As a result, tire plays an important role for enhancing theride value of the vehicles.In addition, by the frictionalforce between the tire and the road surface, it is possibleto run, to stop and to change direction.[Size of Tire and Wheel]Bias Tire

EMTWT5001A

Radial Tire

EMTWT5002A

EMTWT5004A

Wheel

EMTWT5003A

EMTWT5005A

Specifications

ItemSpecification

Size STD Air Pressurekgf/㎠(PSI) Size Option Air Pressure

kgf/㎠(PSI)

HD65 Narrow 7.00R16-10PR 5.0(71) 205/75R 17.5-10PR 7.0(100)

Narrow Low-Bed 195R15-12PR 5.9(84) - -

Wide 7.00R16-12PR 6.0(85) 205/75R 17.5-10PR 7.0(100)

Wide Low-Bed 195R15-12PR 5.9(84) 195/75R 16-10PR 5.9(84)

HD65 Wide 205/75R 17.5-10PR 7.6 (110)

HD72 Wide 7.50R16-12PR 6.5(93) 7.50R16-14PR8.50R17.5-12PR 7.4(105)6.3(90)

HD78 Wide 7.50R16-12PR 6.5(93) 7.50R16-14PR8.50R17.5-12PR 7(100)6.3(90)

Wide Short-Axis 7.50R16-14PR 7.0(100) - -

HD78 Wide 8.50R17.5-12PR 6.3 (90)

Service StandardInspection Items Reference Value Remedy and Remark

Plane Figure of Disk Wheel (Hub Surface) 0.5 mm or less -

Disk Wheel Front Vertical Run OutSide Run Out

1.7mm or less1.8mm or less

Replace and Correction

Rear Vertical Run OutSide Run Out

1.7mm or less1.8mm or less

Tire Vertical Run Out 3.5mm or less Replace

Tightening Torque

ItemsTightening Torque

Nm kgf·m Ib-ft

Front Wheel Nut 539~588 55~60 398~434

Rear Wheel Nut 539~588 55~60 398~434

TROUBLESHOOTINGItem Causes of Troubles Remedy

Uneven Wear on Tire Wear at center of Tread Tire Air pressure is too high Air pressure controlling

Wear at edge of Tread Tire Air pressure is too low

Overload Not overload

Wheel alignment is defective Control

Tire air leak Air valve is defective Replace

Tire tube is damaged Repair or Replace

Tire damage Tire has cracked Improper Air pressure Replace the Tire

Tire material is weakened

Tire is damaged due to drive on wild road

Inside wall of Tire is peeloff

Tire is overheated (frictional heat due todrive with overload for a long time)

Replace

Improper Air pressure

Tire material is weakened

Tire puncture Tire is pierced by a sharp material such a-s nail

Tire is weakened

Wheel and TireComponentsThis illustration shows the LHD type.RHD type is symmetrical.

EMTWT5006A

Removal[Front tire]1. Place the wooden block(A) at the front and rear of

rear wheels.

KMTPA201A

2. Loosen the wheel nut (A).Lift up the axle with garage jack (B) and support theframe with a safety stand(C).

KMTPA202A

3. After removed the wheel nut (A), removed the wheeland tire (B) from hub (C).

CAUTIONa. When removing wheel and tire (B), be careful

that hub bolt is not damaged.

b. As the wheel bolt is distinguished inright-hand type and left-hand type, be carefulwhen the wheel nut is removed.Theright-hand type has “R” mark, while theleft-hand type has “L” mark.

KMTPA203A

[Rear Tire]1. Place the wooden block(A) at the front and rear of the

front wheels.

KMTPA401A

2. Loosen the wheel nut.Lift up the axle with garage jack (A) and support theframe with a safety stand(B)

KMTPA402A

3. After removing the wheel nut (A), remove the wheeland tire (B) from hub (C).

CAUTIONa. When removing wheel and tire (B), be careful

that hub bolt is not damaged.b. As the wheel bolt is distinguished in

right-hand type and left-hand type, be carefulwhen the wheel nut is removed.Theright-hand type has “R” mark, while theleft-hand type has “L” mark.

KMTPA403A

InstallationWARNING

a. Replace the wheel with the steel or aluminumwheel installed as a default part. Do not installdifferent type of wheels .

b. If you want to replace the wheel with differenttype, you should replace the hub stud and wheelnut also

[Front tire]NOTICE

a. Clear the thread surface of the wheel bolt and thewheel nut being installed.

b. Before the installation, coat wheel bearing grease atthe wheel bolt and nut.

1. After install the wheel and tire (B) to the hub (C),tighten the wheel nut (A) in the diagonal order.

CAUTIONWhen installing the tubeless tire, the air valveshould be aligned with the notch of brake drum.

KMTPA203A

2. Removed the garage jack (B) supporting the axle andthe safety stand (C) supporting frame. Tighten thewheel nut (A) with specified torque.

Tightening torque :539~588 Nm (55~60 kgf·m, 397.8~434 lb-ft)

KMTPA202A

3. Remove the wooden block (A) from the front and rearof the rear wheel.

KMTPA201A

[Rear tire]NOTICE

a. Clear the thread surface of the wheel bolt and thewheel nut being installed.

b. Before the installation, coat wheel bearing grease atthe wheel bolt and nut

1. After install the wheel and tire (B) to the hub (C),tighten the wheel nut (A) in the diagonal order.

CAUTIONWhen installing the tubeless tire, the air valveshould be aligned with the notch of brake drum.

KMTPA403A

2. Removed the garage jack (A) supporting the axle andthe safety stand (B) supporting frame. Tighten thewheel nut with specified torque.

Tightening torque :539~588 Nm (55~60 kgf·m, 397.8~434 lb-ft)

KMTPA402A

3. Remove the wooden block (A) from the front and rearof the front wheel.

KMTPA401A

Inspection1. Measure the tire air pressure. If need, control the

pressure with the specification.

KWT1003A

2. Measure tread length of the tire.

Tread length (limit) : 1.6mm

NOTICEa. If the tread length is less then 1.6mm, then mark

for wear limit is shown.b. If the tire is worn unevenly or abnormally, even

the limit mark is shown, then the tire should bereplaced.

KWT1004B

3. Check the tire if there are worst damage (A) andcrack (B), if need, replace the tire.

KWT1005A

4. Measure the tire vertical run out.

Nominal value : 3.5mm

KWT1006A

5. If the tire vertical run out exceeds the nominal value,perform a correction as following method.1. Make marking (A) on the wheel and hub bolts of

tire side.2. Remove the tire from the wheel. Re-install the tire

with being aligned to the mark (A).3. Measure the run out of the disk wheel. If the

portion having large run out is near the marking(A), then rotate the tire with 180° from the markand then install the tire.

4. Measure again the tire vertical run out.5. If the run out is of the nominal value after the

correction, replace the tire and wheel assembly.

KWT1007A

Tube Type TireComponents

EMTWT5007A

Disassembly1. Drain out all air from the tire (A).

KWT1009A

2. Insert a bar (B) between the side ring (A) and tire bid.Press the bar up and down along with thecircumference of the ring.

KWT1010A

3. By inserting a lever (B) at the edge portion of the sidering (A), push the bar (C) into the get between thelever and the side ring.

KWT1011A

4. Push the bar (A) into the center of the tire. Insert thelever (B) between the side ring (C) and wheel rim (D).

CAUTIONWhen the half portions of the side ring areremoved, remained portions of the side ring willbe automatically removed. At the time be carefulthat the side ring may abruptly spring up.

KWT1012A

5. Push the air valve (A) into the valve hole of the wheelrim.

CAUTIONA valve should be capped by a valve cap (B) forpreventing the thread surface of the air valvefrom being damaged.

KWT1013A

6. Set up the tire (A) vertically and press the center oftire lightly.

CAUTIONBe careful that the wheel (B) may be removedsuddenly.

KWT1014A

7. Insert a lever (A) between the bid positioned near theair valve and the wheel rim. Push the rim to remove.

CAUTIONBe careful that the wheel (B) may be removedsuddenly.

KWT1015A

8. Lay down the tire (A). After remove the flap, take outthe tube (B).

KWT1016A

Inspection1. Checking the flatness degree of the wheel

a. Using a dial gauge (A), measure the flatness thedegree at the 170mm and 270mm of the wheel(B) diameters.

b. For measuring the flatness the degree, performthe measurement at least 16 points positionedwith sufficient distance there between in thewheel diameter. The flatness degree of the wheelis the difference between the measured maximumvalue and the minimum value.

c. If the flatness degree exceeds the specification,replace the wheel.

Flatness degree of the wheel (hub surface) : 0.5mm orless

KWT1017A

2. Checking the vertical, horizontal run out of the wheel.Using a dial gauge (A), measure the vertical,horizontal run out of the wheel(B).If the measurementexceeds the specification, replace the wheel.

Vertical run out : 1.7mm or lessHorizontal run out : 1.8mm or less

KWT1018A

Reassembly1. After inject air into the tube (A) a little, insert the tube

into the tire (B).

KWT1019A

2. Insert on air valve (B) into the valve hole of the flap(A). Insert the flap into the tire (C).

KWT1020A

3. Lay down the wheel (A) on the ground. Insert the airvalve (B) into the valve hole

KWT1021A

4. Take the wheel (A) into the tire. Install the side ring(B) at the ring groove.

CAUTIONThe edge surface of the ring side should beoffset from the air valve at least 15cm.

KWT1022A

5. By pressing the edge portion of the side ring (A) onfoot, install the side ring with the lever (B)

CAUTIONBe ensured that the side ring should be insertedcompletely.

KWT1023A

6. Inject air into the tire.

CAUTIONAfter inserting a iron bar (A) into the wheel andbeing apart from the tire, inject air little by little.

KWT1024A

7. Check whether the side ring is firmly assembled withthe wheel and weather the air leaks from the airvalve.

KWT1025A

8. Adjust the balance of the wheel and tire.

NOTICEa. The dynamic balance value should be 40g at

each side of the rim.b. There are 2 balance weight inside and outside

axis, respectively. The maximum value of oneside should below.

The maximum value of one side

HD65 less than 160g

HD72, HD78 less than 230g

c. If the unbalance amount exceeds 270g(HD72,HD78), 200g (HD65) at one side before adjustingthe tire balance, disassemble the tire andreassemble.

Tubeless TireComponents

EMTWT5008A

Disassembly1. Drain out all air of the tire.

KWT1027A

2. Press the side portions of the tire to form a gapbetween the wheel rim and the tire bid.

KWT1028A

3. Apply soap water on the surface of the tire bid andthe wheel rim.

4. Lay down the tire so as the wheel disk(A) surface tocontact ground. Using a lever (B), apply force alongwith the circumference of the rim to disassemblesome portion of the rim from the tire(C).

KWT1029A

5. Turn up the tire so as the wheel disk surface (A) toface up. By inserting the lever (b) between the tire bidand the wheel rim, apply force to remove the wheel.

KWT1030A

KWT1031A

Reassembly1. Assemble the air valve (A) slightly.

CAUTIONCover a valve cap (B) at the valve for preventingits thread surface from being damaged.

KWT1032A

2. Apply soap water on the surface of the tire bide andwheel rim.

3. Lay down the wheel so as the surface of wheel diskto face down to the ground. Push the tire to assemblesome portions of the tire bed with wheel rim.

4. Insert a lever (A) between the wheel rim and tire bid.By pulling the lever to the side of the tire (B),assemble the other portion of the tire bid with thewheel rim.

KWT1033A

5. With pressing the tire (A) on foot, push down the tirebid and pull up the wheel using another lever.

NOTICEUntil the tire is assembled with the tire completely,continue this action along with the circumference ofthe wheel.

KWT1034A

6. Inject the air into the tire.

CAUTIONAfter insterting a iron bar(A) into the wheel andbeing apart from the tire, inject air little by little

KWT1024A

7. By applying soap water between the rim flange andthe tire bid, check if there are air leaks.