Mbw MK8 75 Manuel d'utilisateur télécharger pdf (Page 11)

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SERVICE

Assembly and disassembly should be performed by a

service technician who has been factory trained on MBW

equipment. The unit should be clean and free of debris.

Pressure washing before disassembly is recommended.

• Prior to assembly, wash all parts in a suitable cleaner or

solvent.

• Check moving parts for wear and failure. Refer to the

Replacement section in this manual for tolerance and

replacement cycles.

• All shafts and housings should be oiled prior to pressing

bearings. Also, ensure that the bearings are pressed

square and are seated properly.

• All bearings should be replaced when rebuilding any

exciter or gearbox.

• All gaskets and seals should be replaced after any

disassembly.

Torque Chart

Parts Replacement Cycles and Tolerances

SIZE GRADE 2 GRADE 5 GRADE 8

1/4-20 49 in

•lbs 76 in•lbs 9 ft•lbs

1/4-28 56 in

•lbs 87 in•lbs 10 ft•lbs

5/16-18 8 ft

•lbs 13 ft•lbs 18 ft•lbs

5/16-24 9 ft

•lbs 14 ft•lbs 20 ft•lbs

3/8-16 15 ft

•lbs 23 ft•lbs 33 ft•lbs

3/8-24 17 ft

•lbs 26 ft•lbs 37 ft•lbs

7/16-14 24 ft

•lbs 37 ft•lbs 52 ft•lbs

7/16-20 27 ft

•lbs 41 ft•lbs 58 ft•lbs

1/2-13 37 ft

•lbs 57 ft•lbs 80 ft•lbs

1/2-20 41 ft

•lbs 64 ft•lbs 90 ft•lbs

9/16-12 53 ft

•lbs 82 ft•lbs 115 ft•lbs

5/8-11 73 ft

•lbs 112 ft•lbs 159 ft•lbs

5/8-18 83 ft

•lbs 112 ft•lbs 180 ft•lbs

3/4-16 144 ft

•lbs 200 ft•lbs 315 ft•lbs

1-8 188 ft

•lbs 483 ft•lbs 682 ft•lbs

1-14 210 ft

•lbs 541 ft•lbs 764 ft•lbs

1-1/2-6 652 ft

•lbs 1462 ft•lbs 2371 ft•lbs

M 6 3 ft

•lbs 4 ft•lbs 7 ft•lbs

M 8 6 ft

•lbs 10 ft•lbs 18 ft•lbs

M 10 10 ft

•lbs 20 ft•lbs 30 ft•lbs

CONVERSIONS

•lbs x 0.083 = ft•lbs

•lbs x 12 = in•lbs

•lbs x 0.1383 = kg•m

•lbs x 1.3558 = N•m

Bearings

Replace anytime a bearing is rough, binding, discolored or removed from housing or

shaft.

Engine Components Refer to your engine manufacturer’s Owner’s Manual.

Hardware

Replace any worn or damaged hardware as needed. Replacement hardware should

be grade 5 and zinc plated unless otherwise specified.

Safety Decals Replace if they become damaged or illegible.

Seals & Gaskets Replace if a leak is detected and at every overhaul or teardown.

V-Belts Replace if cracked, torn, or stretched to the point the belt won’t tension properly.

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Mbw MK8 75 Manuel d'utilisateur Page 11

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