Adjusting Alternator Belt Tension; Belt Replacement; Service Helps; Wiring - Hobart 6921 Series Operation And Maintenance Manual

OM-2040 / Operation and Maintenance Manual
90D20 / Generator Sets
c. Adjusting Alternator Belt Tension
See Fig. 7. Slacken hex-bolts (items 1, 2, and 3) . Pull alternator (4) in direction "A" until correct belt
tension is obtained. Then securely re-tighten hex bolts, 1, 2, and 3.
d. Belt Replacement
Replace V-belts according to instructions in Deutz Diesel Instruction Manual in Chapter 6.
Checking Alternator Belt Tension
Figure 6

8. Service Helps

a. Wiring
Wiring leads are covered with a flexible conduit for protection and easy removal and replacement.
All wire leads are color coded.
b. Control Box Trays
Control box trays may be removed easily and moved to a work bench for service or replacement of
parts.
(1) Tray removal
a. Loosen screw-lock fastener (2, Fig. 8).
b. Slide tray outward and disconnect Amphenol Connector (3).
c. Support tray at each side of tray near latches (1). Unlock latches (1) by pressing down with
thumbs, then slide tray out of box.
Chapter 2-1
Page 10

Adjusting Alternator Belt Tension

Figure 7
February 28/94 Revised