BELT SPLICING INSTRUCTIONS
for
CAMFLEX CONVEYOR BELTS (CF) using
FLEXCO 550J FASTENERS
INTRODUCTION
THESE BELT SPLICING INSTRUCTIONS ARE UNIQUE TO CAMFLEX
CONVEYORS, MANUFACTURED BY CAMBELT INTERNATIONAL
CORPORATION OF SALT LAKE CITY, UTAH. WHILE SOME OF THE
PROCEDURES MAY BE SIMILAR TO THOSE EMPLOYED IN THE
MECHANICAL SPLICING OF OTHER TYPES OF CONVEYOR BELTING,
SOME ARE EXCLUSIVE TO CAMFLEX CONVEYORS. IGNORING THESE
SPECIFIC INSTRUCTIONS MAY RESULT IN PREMATURE BELT AND/OR
SPLICE FAILURE, AND WILL VOID ANY WARRANTY ASSOCIATED WITH
THE CONVEYOR BELTING.
1
PROPRIETARY STATEMENT
The information contained in these instructions is the property of Cambelt
International Corp., is confidential, and shall not be disclosed to unauthorized persons
without written authorization from Cambelt.
SPLICE PROCEDURES
1.
Before installing the CamFlex belt into your conveyor, the entire splicing
procedure can be greatly simplified by preparing one (1) end of the belt prior to
threading it through your CamFlex Conveyor. The preparation of the one end of
the belt is detailed in steps 2 and 3 hereafter.
2.
IMPORTANT - ONLY ONE END OF THE BELT WILL BE LEFT
WITH A STRAIGHT, SQUARED-OFF CUT. THE
OTHER END REQUIRES SPECIAL PREPARATION,
WHICH YOU SHOULD DO NOW, AS DESCRIBED
IN PARAGRAPH 3. THE OTHER END OF THE
BELT, WHICH WILL BE SQUARE-CUT, WILL BE
CUT LATER, AS DESCRIBED IN PARAGRAPHS 9
AND 10.
2
3.
ON ONE END OF THE BELT ONLY, first make a squared end cut. Cut the belt
at a location such that the corrugation of the sidewall will line up with the end of
the belt as illustrated below.
Great care must be taken to prepare the end of your belt with a clean and square end for
the final cuts. Do not attempt to "eyeball" a straight (90E) cut. Use a carpenter's square to
check the line you are about to cut FROM ALL ANGLES. Make sure it is square with
the belt - if it is not, difficulty in belt alignment/adjustment will be experienced. Do not
"hack" at the belt with a pocket knife when making your cuts. Use a utility knife with
new blades, against a straightedge, making long, smooth cutting strokes in order to
provide a smooth, clean edge. Mark the center of the belt width with a line
approximately 3" long, as illustrated below.
3
Remove a three-quarters inch (¾") wide strip from the end of the belt everywhere except
at the sidewall locations, according to the following diagram and dimensional table.
MODEL NO.
A
B
C
CF1830
18"
13 ¾"
2 c"
CF2430
24"
19 ¾"
2 c"
CF3030
30"
25 ¾"
2 c"
CF3630
36"
31 ¾"
2 c"
CF2445
24"
18 ½"
2 ¾"
CF3045
30"
24 ½"
2 ¾"
CF3645
36"
30 ½"
2 ¾"
CF4245
42"
36 ½"
2 ¾"
CF4845
48"
42 ½"
2 ¾"
CF2460
24"
18 ½"
2 ¾"
CF3060
30"
24 ½"
2 ¾"
CF3660
36"
30 ½"
2 ¾"
CF4260
42"
36 ½"
2 ¾"
CF4860
48"
42 ½"
2 ¾"
CF5460
54"
48 ½"
2 ¾"
CF6060
60"
54 ½"
2 ¾"
4
4.
Install the CamFlex belt onto your conveyor by carefully following the
instructions of Section III of your Installation, Operations and Maintenance
Manual entitled, "Threading of the Conveyor Belt".
5.
Most CamFlex Conveyors utilize a manual screw type belt take-up device for
removing slack from the belt. Using the take-up screws, move the take-up pulley
to a point approximately 2" from its extreme end of travel, nearest the conveyor
inlet(s). This adjustment results in the least allowable amount of conveyor belting
required to complete the belt's circuit. It also allows that when the belt splice is
complete, the maximum allowable amount of take-up travel remains.
6.
Most CamFlex Conveyor belts shipped will be six inches (6") to eight feet (8'-0")
longer than what is required to complete the belt's circuit. Therefore, if you
simply draw the two ends of the belt together and complete the splice, your belt
"loop" will be far too long; proper tensioning of the belt will be impossible, and
you will have to take the splice apart and re-do one end of the splice, after
removing any excess belt length.
7.
Pull the two ends of the belt together, overlapping them, as you remove the
greatest possible amount of slack from the belt circuit. Usually, belt clamps and
come-a-longs will be required to adequately remove the slack from the belt
circuit. If you did not receive belt clamps with your CamFlex Conveyor, or you
have misplaced them, a new set is easy to make, following the basic design
concept illustrated at the top of the next page.
5
Come-a-longs will be most effective, and both sides of the belt can be equally
tensioned if two (2) come-a-longs are utilized, one on the left side of the belt and
one on the right side. Ideally, each belt clamp should be initially positioned
approximately five feet (5'-0") from each end of the belt. If physical constraints
don't allow that positioning, position the clamps as far apart from each other as
possible.
8.
With the belt circuit pulled as tightly as possible, cut away enough belt from the
unfinished end that you leave an overlap of approximately six inches (6") of belt.
Making this initial cut will allow you to remove the excess length of conveyor
belting which would otherwise obstruct free access to the belt splice area. Ideally,
when the belt ends are completely prepared, you will be left with an overlap of the
two ends of approximately only two to three inches (2" to 3").
9.
As you prepare to make your final cut to the unfinished end, you should plan
ahead and make the cut in a position that will allow for proper joining of the
corrugated sidewalls. See the illustration below that shows the proper orientation
of the corrugations at the splice joint.
6
10.
Great care must be taken to prepare the end of your belt with a clean and square
end. Do not attempt to "eyeball" a straight (90E) cut. Use a carpenter's square to
check the line you are about to cut FROM ALL ANGLES. Make sure it is square
with the belt - if it is not, difficulty in belt alignment/adjustment will be
experienced. Do not "hack" at the belt with a pocket knife when making your
cuts. Use a utility knife with new blades, against a straightedge, making long,
smooth cutting strokes in order to provide a smooth, clean edge.
11.
IMPORTANT - If the CamFlex belt was installed into the conveyor prior to the
preparation of one end of the belt, go back to paragraphs no. 2 and 3 NOW.
Complete paragraphs 2 and 3, then proceed to paragraph 12.
12.
Any nubs that are within two inches (2") of the end of the belt will be an
obstruction to proper installation of the mechanical belt fasteners. As you have
nubs within that two inch (2") limit, they will have to be cut away and removed
flush to the belt top cover.
13.
After making a clean, square cut on the last end of the belt, turn the belt upside
down and mark the center of the belt width with a line approximately 3" long,
similar to what was done in paragraph 3, previously.
7
14.
With the belt end(s) upside down, insert a wood block under the end and between
the sidewalls of the belt. This block should be slightly taller than the belt
sidewalls.
15.
Position the drilling template (included in splice kit) at the end of the belt and
align the center mark on the template with the center mark made earlier on the belt
end(s). NOTE: TEMPLATE IS DIRECTIONAL.
16.
Using the double headed nails (included in splice kit) secure the template to the
belt end by nailing through the small pre-drilled holes in the template, through the
belt, and into the wood support block.
17.
Using the Flexco P1P punch (included in splice kit) drill all the holes except any
holes in the template that may be marked with an "X" across the holes. The "X"
holes are at the sidewall locations, and MUST NOT BE PUNCHED! If no holes
are "X" marked, punch at all holes in the template. DO NOT PUNCH ANY
HOLES AT CORRUGATED SIDEWALL LOCATIONS.
18.
Remove the template and turn the belt top-side up. Drill holes in the sidewalls at
positions as indicated on the diagrams below. These holes are to permit
installation of the sidewall joining clamp strips.
8
19.
Place the Flexco 550J fasteners over the ends of the belt. Install the bolts and
nuts, inserting the bolts from the bottom of the belt, and tighten the nuts (nuts
should be countersink side down, slotted side up) until the belt rubber begins to
swell around the edge of the fastener clamps. DO NOT OVERTIGHTEN!
20.
Cut two (2) lengths of the orange filler tubing, each piece should be
approximately the same length as the "B" dimension on the chart in step no. 3
above. Insert one (1) filler tube into the fasteners at each end of the belt as
illustrated below.
21.
Cut the nylon covered hinge pin to a length equal to the "B" dimension on the
chart in step no. 3 above.
9
22.
Align the fasteners on one end of the belt with the fasteners on the other end of
the belt. Push the belt ends together, allowing the fasteners to inter-mesh. Insert
the hinge pin.
23.
Place one (1) hinge pin retaining washer (included in splice kit) on each end of
the hinge pin and crimp it in place.
24.
Join the sidewalls together by inserting the 1 ¼" bolt(s) through one (1) backing
plate; insert the bolt(s) through both sidewall ends; place another backing plate on
the bolt(s), and secure with a nylock nut(s). Tighten snugly, but do not overtighten. Repeat this procedure on the other sidewall.
25.
Two (2) rubber attachable cleats are included in the splice kit. The base of each of
the cleats has been pre-punched to fit down over every other fastener bolt that was
installed in paragraph 19, previously. The fastener bolts for which there are no
corresponding punched holes in the cleat base must be broken off. With a pair of
vice grips, bend those bolts back and forth until they snap off at the top of their
corresponding fastener nuts. Do not cut or grind off the bolts; bending them off
will ensure that the nuts remain tight.
26.
Place the two (2) rubber attachable cleats over the splice fasteners by pressing the
cleats down over the remaining long fastener bolts, as shown in the illustration
below.
10
27.
Place a 1/4" flat washer on each fastener bolt that now extends through the rubber
attachable cleats. Secure with 1/4" nuts that are included in the splice kit.
28.
The tops of the two (2) rubber attachable cleats will likely be higher than the tops
of the corrugated sidewalls. Trim the tops of the cleats so they are equal to the
sidewall height, or no shorter than 1/8" shorter than the corrugated sidewalls. A
course power grinder works well to trim the cleats. If unavailable, trimming with
a knife is acceptable.
29.
The above instructions complete the splice for a CamFlex Conveyor belt with
non-recessed sidewalls, using Flexco 550J mechanical fasteners. If there are
further questions, please call Cambelt at (801) 972-5511 for assistance.
11
CF6060
CF5460
CF4860
CF4260
CF3660
CF3060
CF2460
CF4845
CF4245
CF3645
CF3045
CF2445
CF3630
CF3030
CF2430
CF1830
NO.
MODEL
BELT
CONVEYOR
X
550J-18NC
X
X
X
550J-24NC
X
X
X
X
X
X
X
X
X
X
FASTENERS
550J-30NC
550J-36NC
550J-42NC
550J-48NC
X
550J-54NC
X
550J-60NC
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
PARTS
4
4
4
4
4
4
4
4
4
4
4
4
2
2
2
2
4
4
4
4
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
38
34
30
26
22
18
14
30
26
22
18
14
22
18
14
10
SPLICE KIT PARTS LIST
Hinge Pin
Orange Filler Tubes
Crimp Washers
2900777-02 Backing Plate
2900821-03 Backing Plate
2900825-02 Backing Plate
¼" x 1-½" Hex Head Bolt
¼" Nylock Nut
Rubber Cleats
¼" Flexco Nuts
38
34
30
26
22
18
14
30
26
22
18
14
22
18
14
10
¼" Flat Washer
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
P 1 P Flexco Punch
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
H100 Flexco Wrench
X
Modified Flexco 518 Template
X
X
X
Modified Flexco 524 Template
X
X
X
X
X
X
TOOLS
Modified Flexco 530 Template
Modified Flexco 536 Template
X
X
Modified Flexco 542 Template
X
X
Modified Flexco 548 Template
X
Modified Flexco 554 Template
X
Modified Flexco 560 Template
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