Operation and maintenance manual

Fan Spacer and Pulley QSB4.5 and QSB6.7

Page A-18 Section A - Adjustment, Repair, and Replacement

Clean and Inspect for Reuse

WARNING

When using solvents, acids, or alkaline materials for

cleaning, follow the manufacturer's recommendations

for use. Wear goggles and protective clothing to

reduce the possibility of personal injury.

Clean the fan pulley and spacer with solvent and dry with

compressed air.

Inspect the fan pulley for cracks near the bolt holes and

for damage at the drive belt contact surface.

If damage is found on the fan pulley, the fan hub must

also be inspected. Refer to Procedure 008-036 in Section

Replace the pulley if any damage is found.

Install

NOTE: Use the tension of the drive belt to hold the

cooling fan in place when tightening the mounting

capscrews. Do not hold the fan blades to keep the cooling

fan from rotating.

If the engine is not equipped with an engine driven

cooling fan, install the fan pulley mounting capscrews and

fan pulley.

Do not tighten the mounting capscrews at this time.

Tighten the mounting capscrews after the drive belt is

installed.

Torque Value:

M6 10 N•m [ 89 in-lb ]

Torque Value:

M10 43 N•m [ 32 ft-lb ]

Torque Value:

M12 77 N•m [ 57 ft-lb ]