John Deere POWERTECH 4045 - Manual (Page 145)

Lubrication & Maintenance/500 Hour/12 Month
OUOD002,000016D –19–27JUL06–2/2
RG11814
–UN–31OCT01
Belt Tension Tool and Torque Wrench
RG11815
–UN–31OCT01
Scribe Reference Mark
A—Alternator
B—Belt Tensioning Tool
C—Torque Wrench
D—Reference Mark
E—Alternator Upper Bracket Notch
3. Place torque wrench (C) on belt tensioning tool (B) at
90
°
to tool. Pivot alternator (A) until desired torque is
achieved according to specification using the following
table.
Specification
New Belt—Tension 470—650 N (105—145 lb-force) .................................
Used Belt—Tension 400—580 N (90—130 lb-force) ..................................
JDG1520 Belt Tensioning Tool Torque Table
Desired Belt Tension N Applied Torque N•m (lb-ft)
(lb-force)
445 (100) 108 (90)
489 (110) 115 (85)
534 (120) 122 (90)
623 (140) 135 (100)
4. While holding tension with torque wrench (B), scribe a
reference mark (D) on alternator in line with notch (E)
on upper alternator bracket.
5. Continue to hold tension with torque wrench and
tighten upper alternator bracket cap screw.
6. Check position of reference mark to see if alternator
moved while tightening. If alternator moved, loosen
upper alternator bracket cap screw and repeat the
tension adjustment procedure.
7. Remove belt tension tool and tighten lower alternator
bracket cap screw.
30-6
080706
PN=143