Nordson 107 041A, Manual

Page: 94 / 166

Maintenance
5-10
E
1996 Nordson Corporation
All rights reserved
107 041A
Issued 1/96
Manual 12-28
WARNING: Risk of electrical shock. Remove power to the
oven. Failure to observe this warning may result in personal
injury, death, or equipment damage.
CAUTION: Adjust chain temperature at room temperature only.
Failure to observe this caution will result in conveyor motor and
gear box damage.
Adjust the conveyor tension and width after the initial 400 hours of oven
operation and, as required, thereafter.
Checking Chain Tension
Chain buckling and kinking on the large sprocket or slack on the middle
sprocket at the oven exit indicates tension problems.
To adjust chain tension, perform the following steps:
NOTE: Make all tension adjustments to the non-spring load idler tension
block located at the opposite end of the conveyor rail.
1. Turn off the oven at the main disconnect. Let the oven cool off.
2. See Figure 5-2. Remove the sprocket guards (6) and rail covers (3)
from the entrance and exit ends of the conveyor rails.
3. Using two open end wrenches, adjust the idler block assembly (2) for
3 mm (0.125 in.) of upward travel.
NOTE: If tension adjustment problems occur, remove or add links.
4. Make sure that all conveyor rail sprockets remain in alignment.
5. Repeat steps 3 and 4 for the remaining rail.
Setting the Conveyors Minimum Width Limit
Perform the following steps to align the movable rail:
1. Remove the hinged side access panels.
2. Make sure that the rail uprights are vertical and straight.
3. Make sure all bearings are free-turning.
Conveyor Adjustments