Frontier BL2130, Operator'S Manual

Page: 23 / 44

OPERATION
OM 0401-A
21
Figure 11
A
DJUSTMENTS
Belt Tension Adjustment
(Figure 11)
1. Remove the belt protector (item 5) by removing
the six 3/8"NC x 3/4" carriage bolts and six
serrated flange nuts (items 6-7).
2. Loosen the eight 1/2"NC nylon insert locknut
(item 1).
3. Tighten eyebolt nuts (item 2). With a belt
tension gauge check for a 35lbs tension and a
3/16" displacement in the center in all belt axis
(item 3).
4. Realign the driving pulley assembly (item 4) by
pressing the support against the bolted guides.
Tighten loosely the eight 1/2"NC nylon insert
locknuts (item 2) loosen previously. With a long
ruler that may cover the distance between
pulleys, check the pulleys alignment, If
alignment is good, tighten the eight 1/2"NC
nylon insert locknuts (item 2). If not, follow next
step.
5. If the belts are not well aligned, loosen the
guide nuts and the eyebolt nuts. Align the two
pulleys, slightly tighten the eight 1/2"NC nylon
insert locknuts (item
2). Press the guides
against the driving pulley assembly (item 4)
and tighten guide nuts. Redo step 2. Check the
pulleys alignment and if the driving pulley
assembly is well pressed on guides. If so,
tighten firmly the eight 1/2"NC nylon insert
locknuts. If not, repeat procedure.
6. Reinstall the belt protector (item 5) with the six
3/8"NC x 3/4" carriage bolts and six serrated
flange nuts (items 6-7).