RDG603A20 - Issue 10
Page 53 of 100
9. Belt Adjustment
WARNING:
SEVERE HAZARD!
KEEP HANDS AND OTHER BODY PARTS AWAY FROM
MOVING/ROTATING PARTS. WEAR TIGHT FITTING CLOTHING AND KEEP YOUR
HAIR SHORT OR TIE BACK. REMOVE ALL JEWELLERY BEFORE COMMENCING
WORK. CHECK BEFORE STARTING THE ENGINE THAT ANY TOOLS OR RAGS
USED DURING MAINTENANCE HAVE BEEN REMOVED FROM THE AREA.
Shire 38, 40 & 50:
Ensure the ignition key is removed before carrying out any adjustments.
Turn the battery master switch to the off position before carrying out any adjustments
Depress the longest run of the drive belt to be checked. If the travel exceeds 15-20mm
using hard finger pressure, the belt needs re-tensioning.
Loosen the upper adjuster on the alternator. Loosen the lower mounting pivot nut and
bolt. Pull out either using hand pressure or using the tensioning screw, depending on
which alternator belt is to be tensioned.
Pull the alternator away from the engine to tighten the belt.
Hold the alternator in position and retighten all the bolts.
Optional Self Adjusting Belt Tensioner (Shire 45 & 50 only):
The domestic alternator (240A) can have an automatic belt tensioning pulley fitted. No
adjustment of the belt is required.
If the belts are over tightened, alternator bearing failure will occur.
