Racked Sections; Belt Installation; Belt Tracking - HYTROL NBEZ Manual De Instalación Y Mantenimiento

10. For Model NBEZA, connect air lines and
cordsets at section joints as shown in Figure 4F.
11. For Model NBEZA, connect main air supply
line to Filter/Regulator (Figure 4E). Set Regulator
to working pressure of 12 P.S.I.
12. Install and wire any auxiliary cables or I/O
modules. Refer to pages 6 and 7 for more
information about auxiliary connections.
13. Install electrical controls and wire motor. See
page 8.

• Racked Sections

It is important that each bed section be checked
for an out-of-square condition and squared prior
to being set in place. If conveyor is not square,
tracking problems will result. Figure 5A indicates
a racked section.
TO CORRECT AN OUT-OF-SQUARE
SECTION
1. Locate points on corners of section and
measure distance "A" & "B". If the dimensions
are not equal, the section will need to be
squared. (Figure 5B).
2. Use crossbracing supplied on underside
of conveyor to square each section. Adjust
turnbuckle until Dimensions "A" & "B" are equal.
3. After all bed sections have been checked and corrected for "racked
condition", tighten all butt couplings and pivot plate bolts.
4. Make final check to see that all conveyor sections are level across width
IMPORTANT!
Being out of level across width of conveyor
can cause package drift on long conveyor
lines, and will cause belt to not track
properly.

• Belt Installation

INSTALLING THE BELT
The conveyor belt is an endless splice belt that has been sized correctly and
installed at the factory to confirm length. The belt should be installed with the fabric
side down toward the pressure roller carriage and the polyurethane coated side up
toward the tread rollers.
1. Remove tread rollers as necessary to thread belt through conveyor as shown
in Figure 5E.
2. Removal of the snub idler through the access panel and take-up pulley will be
necessary for installation of a new belt.
3. Adjust the belt tension via the 3/8 nut on the end of the center drive box until the
black mark is centered in the belt tension window Figure 5E.
4. Ensure belt is positioned between belt guides through the length of the conveyor.
5. Adjustment of snub idler closest to the infeed end may be required to properly
track the belt.
IMPORTANT: When belt tracking adjustments are made, they should be minor
(1/16 in. at a time on idlers, etc. should be sufficent.) Give the belt adequate time
to react to the adjustments. It may take several complete revolutions around the
conveyor for the belt to begin tracking properly on long, slow conveyor lines.
A) Stand at tail pulley looking toward drive and note what direction belt is
traveling.
B) Having observed belt and determined tracking problem, make minor
adjustments to the snub idlers by moving one side towards the discharge end
as needed. See Figure 5E.

• Belt Tracking

Before attempting to physically track the belt:
1. Make sure all bed sections are square. See information on "Racked
Sections", Page 5.
2. Make sure conveyor is level
across the width and length
of unit. Adjust supports as
necessary.
3. Make sure all pulleys, return
idlers, and snub idlers are square
with the conveyor bed.
4. Make sure belt has been
properly threaded through
conveyor. See belt installation
above.
5. Tail pulleys can be adjusted for
tracking the belt if needed.
6. Snub roller in drive is to be
adjusted if belt is tracking off
inside drive.
FIGURE 5B
and length. If entire conveyor is level,
supports can be lagged to floor.
"Racked" conveyor sections will
cause package to travel toward side of
conveyor.
FIGURE 5A
5
FIGURE 5C
FIGURE 5D
FIGURE 5E