Section 06 TRANSMISSION
Subsection 02 (DRIVE PULLEY)
Remove 3 Allen screws retaining spring cover
then unscrew compressor.
CLEANING
5,6, Fixed and Sliding Halves
Clean pulley halves and shaft with fine steel wool
and dry cloth.
5,29, Fixed Half/Crankshaft End and
Governor Cup/Fixed Half Post
Parts must be at room temperature before clean-
ing.
Using a paper towel with Pulley flange cleaner
(P/N 413 711 809) , clean crankshaft tapered end
and the taper inside the fixed half of the drive
pulley, crankshaft threads and retaining screw
threads.
Before installation of drive pulley, clean also crank-
shaft threads and retaining screw threads.
WARNING
This procedure must be performed in a well-
ventilated area.
CAUTION: Avoid contact between cleaner and
crankshaft seal because damage may occur.
Remove all hardened oil deposits that have baked
on crankshaft and pulley tapered surfaces with
coarse or medium steel wool and/or sand paper
no. 600.
CAUTION: Do not use any other type of abra-
sive.
Reclean mounting surfaces with paper towel and
cleaning solvent.
Wipe off the mounting surfaces with a clean, dry
paper towel.
CAUTION: Mounting surfaces must be free of
any oil, cleaner or towel residue.
7,20, Bushing
Only use petrol base cleaner when cleaning bush-
ings.
CAUTION: Do not use acetone to clean bush-
ing.
INSPECTION
Drive pulley should be inspected annually.
16,17, Thrust Washer and Roller
Check roller for roundness of external diameter.
Check thrust washer for thickness wear. Replace
as required.
CAUTION: Ensure rollers are in good condition.
Replace as required.
9,12, Fitting Bolt Ass’yand
Flanged Bushing
Check for wear, replace as required.
24,25, O-ring and Slider Shoe
Check if O-rings are cracked, cut or crushed. Re-
place as required.
Check slider shoes for wear. Replace if groove is
not apparent on top.
5,29, Fixed Half and Governor Cup
Inspect splines and free play between both parts.
Maximum free play is 0.5 mm (.020 in) measured
at calibration screw radius. Replace if required.
7,20, Sliding Half and Spring
Cover Bushing
Visually inspect coating. Replace if worn.
Sliding Half Bushing Replacement
NOTE: In case of worn out bushing, it is advisable
to replace whole sliding half ass’yasreplacingjust
the bushing may reduce the drive pulley perfor-
mance.
Remove circlip from the sliding half.
A32D2TA
1
1. Circlip
218 mmr2004-Rev