R
Installation
Instructions
ELECTRIC CONVERSION KIT
3” ALUMINUM ROLL TUBE
IMPORTANT: This Electric Conversion Kit has been designed for systems with a 3” aluminum roll tube. It is assumed that the tarping system is already in place on the
trailer. These instructions outline how to place the electric
system and the rear return system on the trailer. NOTE: A
rivet kit has been provided to attach the tarp if needed. The
silver rivets are to be used to attach the tarp to the stationary tube and the black rivets are to be used to attach the
tarp to the 3” roll tube.
NOTICE TO INSTALLER:
It is recommended you take the time to read these instructions
carefully before installing or using this Electric Conversion Kit. Often
improvements are made without prior notice. Always handle components
with care to avoid personal injury or damage to components. When done,
these instructions must be given to the end user.
NOTICE TO END USERS:
Read these instructions and understand this Electric Conversion Kit
before using it. Store these instructions for future use.
Tested. Trusted. Guaranteed.
Table of Contents
Inspection, Maintenance ............................................................. Page 2
Safety and Operating Instructions................................................ Page 3
Tools for Installation...................................................................... Page 3
Installing Electric Conversion....................................................... Pages 4-22
Installing Electrical Parts.............................................................. Page 20
Warranty....................................................................................... Back Page
Inspection and Maintenance
• Periodic preventive maintenance should be practiced. Inspect tarp system often
for proper operation.
• Periodically inspect front arm (and spiral springs) and cable return for loose or
worn parts and replace as needed.
• Always use genuine Agri-Cover, Inc. replacement parts if repairs are needed.
• Periodically check the tightness of mounting bolts and electrical connections,
remove any dirt or corrosion that may have accumulated on the electrical connections.
• Do not attempt to disassemble the motor or gearbox. Disassembly will void
warranty.
• The motor gearbox is lubricated with 5 ounces of mobil SHC 630 lubricant and sealed
for life.
• Periodically grease zerk fittings and lubricate chain. Remove plastic plug to access
zerk and chain inside gear box.
Grease Zerk
Chain lube
(80W SAE gear oil)
Grease Zerk
2
Safety
ARM UNDER SPRING
PRESSURE!
ARM IS
NOT A STEP.
READ MANUAL THOROUGHLY
BEFORE DISSASEMBLING
SPRING ARM. FAILURE TO DO
SO COULD RESULT IN
SERIOUS INJURY OR DEATH.
MANUALS AVAILABLE AT
NOTE: If original decal becomes damaged or missing on
arm, order replacement decal part number 70863.
ATTENTION: When performing maintenance procedures
on spring arm, note that arm is under spring pressure.
Always use caution and assistance from another person
if disassembly is required.
AGRICOVER.COM
PN 70863
ELECTRIC MOTOR
OPERATING INSTRUCTIONS
NOTE: For kits with Command Station or the COMMAND-10® Remote Control refer to those manuals for operating instructions.
1: CLOSING TARP FROM OPEN POSITION
Push switch to the CLOSED position and hold. Visually view tarp position and
release switch when tarp is fully closed. Fully closed is when tarp roll tube is
tight up under latch plate.
2: OPENING TARP FROM CLOSED POSITION
Push switch to the OPEN position and hold. Visually view tarp position and
release switch when tarp is fully open. Fully open is when tarp roll touches tarp
stops. TOO TIGHT in open position could cause damage to tarp stops, tubes
and tarp.
IMPORTANT: Electric tarp system is equipped with a modified reset
circuit breaker. Holding switch until circuit breaker trips is too
long. When this occurs, breaker will trip and reset if the breaker
is overloaded by the motor. To reduce unnecessary strain on
components, always release switch before breaker trips. If breaker trips
and does not reset, it may have detected a continuous short and will
not reset until the short is repaired.
Tools
(most installations will require the following):
• Protective eyewear
• 9/16” socket
• Tape measure
• 9/16”, 1/2”, 7/16” and 3/8”
• Marking pencil
Combination wrench
• 3/8” electric drill
• Heat gun
• #2 and #3 Phillips driver bit
• Wire cutter and crimper
• 5/16” drill bits
•Grinder
• Center punch
• Hammer
• Impact wrench
3
1. INSTALLING PIVOT MOUNT - Front of the Trailer
NOTE: If installing pivot mount on a slant wall trailer skip step 1A and
proceed to step 1B.
A. Secure both halves of pivot mount with (3) 3/8” x 1-1/2” carriage bolts and
3/8” nuts.
3/8” nut
Pivot mount
3/8” x 1-1/2”
carriage bolt
B. Slide stainless steel square nuts into channels on support plate. Secure
pivot mount to support plate using (4) 3/8” x 1” bolts, flat washers and lock
washers threaded into the square nuts in the channel. Center pivot mount
on support bracket and tighten all hardware.
3/8” square nut
Pivot mount
Pivot mount
support plate
3/8” square nut
3/8” x 1” bolt
Flat washer
Lock washer
4
2. PIVOT MOUNT/SUPPORT PLATE LOCATION - Front of the Trailer
TIP: For easier installation, park trailer on level grade and unhook tractor.
Align center point of pivot mount support plate with centerline of box.
Measure down 47”-55” from top of end cap and mark holes for drilling.
View shows vertical wall box. Do the same on slant wall box (see bottom
of page). If unable to place at recommended location, pivot mount can be
located higher on the box, though arm may lift tarp off box during operation.
Make sure telescopic arm has a clear pathway to operate. NOTE: Pivot
mount support plate should be attached to support braces whenever
CL
possible.
Measure
down to
center of
pivot mount
support
plate
Pivot mount and
support plate
centered on box
CL
Centerline
of box
Maintain 5” of
clearance from
obstructions below
Slant wall trailer
Measure
down on
slant wall
as shown
47” Min
55” Max
Mark hole pattern
locations
47” Min
55” Max
C
L
CL
Maintain 5” of clearance
from obstructions below
Pivot mount
support plate
TIP: Hold pivot mount support plate in position with centerline and
mark hole locations in line with support braces using grooves on
support plate as guide. Note, on slant wall installs, hole pattern will tilt
downward from measured centerline.
DO NOT DRILL HOLES YET!
5
3. INSTALLING SUPPORT PLATE - Front of the Trailer
Note: Before drilling any holes, make sure telescopic arm has a clear
pathway to operate.
A. Drill 5/16” holes where marked. Attach pivot mount support plate to box
wall by turning 3/8” x 1” self threading bolts to cut threads then turn back out.
Secure using 3/8” x 1-3/4” bolts, whenever possible use nuts on back side.
NOTE: Bolt locations may vary from what is shown below based on
locations of support braces on trailer.
CL
3/8” nut
Pivot mount
needs to be
centered on box
Pivot mount
support plate
Pivot mount
support
plate bolted
on box
3/8” x 1-3/4”
bolts
Centerline
of box
IMPORTANT: Before proceeding make sure pivot mount is centered on
box. If needed loosen hardware and re-adjust pivot mount at this time.
4. BOLTING PIVOT ARM TO PIVOT MOUNT
For vertical wall trailer use step 4A, for slant wall trailer use steps 4B
and 4C.
NOTE: The motor, gear box and arms are pre-assembled. The lower
pivot arm slides inside the larger motor arm with wire routed inside
both arms.
A. Bolt pivot arm to pivot mount using (4) 3/8” x 1” carriage bolts and 3/8”
nuts. Make sure keyway in pivot shaft is pointed down. NOTE: Carriage
bolts may be installed from back side of pivot mount if needed.
3/8” nuts
Pivot mount
Pivot mount
support plate
3/8” x 1”
carriage
bolts
Keyway in pivot
shaft pointed down
6
Pivot arm
4. BOLTING PIVOT ARM TO PIVOT MOUNT (Continued)
Use steps 4B and 4C for installation on slant wall trailer
B. Bolt pivot arm to slant bracket using (4) 3/8” x 1” carriage bolts and 3/8”
nuts. Make sure notch in pivot shaft is pointed down and slant bracket has
wide side up. NOTE: Carriage bolts may be installed from back side of
slant bracket if needed.
3/8” nuts
3/8” x 1”
carriage
bolts
Slant bracket,
wide side up
Pivot arm
Keyway in pivot
shaft pointed down
C. Bolt pivot arm with slant bracket to pivot mount using (3) 3/8” x 1” carriage
bolts, (3) 3/8” x 1-1/2” carriage bolts and 3/8” nuts. Make sure notch in pivot
shaft is pointed down and wide side of slant bracket is up. Leave bolts loose
for now.
(3) 3/8” x 1”
carriage bolts
Pivot arm bolted to
slant bracket, wide
side up and keyway
pointed down
3/8” nuts
Pivot mount
support plate
(3) 3/8” x 1”-1/2”
carriage bolts
7
5. INSTALLING DRIVE CARTRIDGE
At front of roll tube, slide protective sleeve over roll tube. Slide drive cartridge
in end of roll tube. Slide vinyl cap over cartridge shaft and onto roll tube.
Cartridge shaft should protrude out of roll tube as shown with vinyl cap in
place.
Note: Drive cartridge is left loose to allow for adjustment when squaring
motor arms with roll tube in later step.
Front end of
roll tube
Protective
sleeve
Protective
sleeve
Drive cartridge
Vinyl cap
8
6. VERTICAL ALIGNMENT OF MOTOR ARM
NOTE: Arm is under pressure. Requires two people for safe installation.
Vertical Wall Front
Slant Wall Front
When arm is perpendicular to
roll tube tighten carriage bolts
Lift arm to vertically align motor and arm as shown. Make sure pathway of motor and
arm is free of obstructions (ladders, etc.). Tighten carriage bolts now.
7. CONNECTING MOTOR/GEAR BOX TO DRIVE
Protective
sleeve
#12 Phillips
head screw
Roll pin
Apply grease to motor shaft. Raise arm with motor up and insert shaft into
drive cartridge. Secure shaft to tube with roll pin. A clevis pin is installed later.
Align center of sleeve to travel over top of wind deflector (See photo “A” in
Step 8). Secure with #12 Phillips head screw.
9
8. SQUARING MOTOR ARMS WITH ROLL TUBE
A. Square the motor pivot
arm with roll tube by adjusting
the drive cartridge in or out as
needed. NOTE: Trim cutting the
end of the roll tube shorter may
be necessary in some cases.
Wind deflector
90°
Protective sleeve
B. After pivot arm is squared
with tube, measure along side
of tube, 180 degrees opposite
of rope channel, and mark
6-1/2” in from
beginning of
drive cartridge.
6 1/2”
180o
Set 5/16” drive rivet
10
C. Drill 5/16” hole through roll
tube and first wall of cartridge
inside of tube. Insert 5/16” x
9/32” drive rivet. Make sure
rivet is fully seated. Set with
hammer.
9: TRIM EXISTING LATCH PLATE - Rear of Trailer
Remove bolt to
use in step 9B
A. The latch plate will need to be
shortened to accommodate the
roller guides. Measure 4-1/4” in
from end of latch plate and make
mark. IMPORTANT: Ensure tarp
will still rest on latch plate.
Make mark
on latch plate
4-1
/4”
Cut latch plate at
mark and remove
all sharp edges
1”
Drill 5/16” hole centered on
groove and secure with 3/8” x 1”
self threading bolt from step 9A
B. Loosen latch plate from box and
make square cut on latch plate at
mark made in step 9A. Remove all
sharp edges and burrs to protect
tarp. Refasten latch plate to box.
Measure in 1” from cut end and use
small groove line on latch plate as
center point to drill 5/16” hole and
fasten with 3/8” x 1” self threading
bolt from step 9A.
11
10: ASSEMBLING / PLACING ROLLER GUIDE
Clevis pin
Cotter
pin
Roller
Roller
bracket
Flat
washer
B. Position the roller guide 1/4” from
cut end of latch plate. The lowest
point of roller should be flush with
or slightly above the top surface of
the trailer. Roller bracket should not
interfere with end caps. Mark the
bracket holes.
Lowest point of roller
flush with or slightly
above top of box
1/4”
Mark holes
to drill
Roller
guide
Cotter pin
away from
tarp
Drill 5/16” holes and
secure with (2) 3/8” x 1”
self threading bolts
12
A. Place roller with a flat washer
on each side into the roller bracket.
Line up holes and insert clevis pin
through bracket, washers and roller.
Secure clevis pin with a cotter pin.
NOTE: Cotter pin should always
be away from the tarp.
C. Drill 5/16” holes at each mark
and secure roller bracket with
(2) 3/8” x 1” self threading bolts.
Kit comes with stainless steel
hardware. If securing with stainless
steel hardware, use self threading
bolts to cut threads into 5/16” holes,
then turn 3/8” x 1” stainless steel
bolts with stainless steel washers
and lock washers.
11. PREPARING SPRING BOX RETURN AT REAR OF BOX
A. Unpack container with spring box. Lift both covers off of spring box and
set aside. Remove nut and bolt that holds spring to box. Set nut, bolt, and
all contents aside for later. Inside is the drive line cord for next step.
Complete spring
box with covers
on and hardware
packed inside
Spring inside
Wear tube inside
Untabbed cover
removed and
set aside
Drive line cord removed
from inside
Hardware package
removed from inside
Tabbed cover removed
and set aside
13
12. WRAPPING DRIVE LINE CORD ON ROLL TUBE
A. At rear of box, tie loose overhand knot in
one end of drive line cord. Insert loose knot
into groove on roll tube.
B. Slide knot over and pull tight. Wrap drive
line cord around tube from outside going
inward toward tarp, always toward box
wall.
C. Wrap drive line cord 12 full wraps and
let excess hang down. Cord needs to be at
least 1” away from tarp.
1”
REAR
Box
Wall
14
13. LOCATING / MOUNTING SPRING BOX - Rear of the trailer
NOTE: Installation is shown on smooth wall trailer. On trailers with
ribbed walls, bolt spring box to ribs. If needed, optional brackets are
available. See page 22 for details.
A. At rear of trailer with roll tube
hanging down, position spring box 10”
to 14” down from roll tube clear of any
interference and make mark at each
end of spring box.
B. Orientate spring box so pulley end
is at same end as drive line cord. Align
notches on spring box with lowest
point of roller. Drive line cord needs to
run near vertical (+/- 1/2”). Adjust drive
line cord on roll tube if needed.
Adjust spring
box to align
notch with
center of roller
10”-14”
C. Select solid bolting locations (such as rivet lines or ribs) for first two bolts
near drive line (4” and 12” from front) and last bolt away from drive line.
Knock out slotted slugs and make mark. For the three center bolts, select
best location along laser etching of spring box and make mark at these
locations. Before drilling, make sure all marks are at solid locations and
notches on spring box align with center of roller. Drill 5/16” holes at marks.
Roll tube
10”-14”
Place last bolt
through knockout
Spring box
Place three center
bolts at laser etching
10”-14”
Drive
line
Place first two bolts
through knockouts
15
13. LOCATING / MOUNTING SPRING BOX (continued)
D. After bolting locations are determined, on back side of spring box, apply
self adhesive foam strips, one on top and one on bottom of each bolting
location.
Self adhesive foam strips
Self adhesive foam strips
Roll tube
10”-14”
Button head bolt
through knockout
Spring box
Button head bolts
through holes at
laser etching
10”-14”
Drive
line
Button head bolts
through knockouts
E. Use a 3/8” x 1” self threading bolt to cut threads for button head bolts at all
6 locations.
F. Realign spring box with holes and secure with a button head bolt and 3/8”
flat washer at all 6 locations. With notches in line with cord, tighten bolts with
a 7/32” Allen wrench.
16
14. INSTALLING SPRING
A. Place wear tube in spring box with opening facing down and away from
box as shown.
Spring box
Wear tube with
opening facing
down and away
from box
B. Place spring inside of wear tube (not shown below) on ledge of spring box
with spring loop towards middle of truck box. Hold and insert 3/8” x 2-3/4”
bolt and spacer bushing, secure with lock nut, tighten until snug.
Spring
Spring Box
3/8” x 2-3/4”
bolt
3/8” Bushing
Lock nut
17
15. ATTACHING DRIVE LINE CORD TO SPRING/SETTING TENSION
Start
here
Pulley in
spring box
Drive
line
cord
Pulley
block
slot
A. Route drive line around
pulley in end of spring box, over
and around pulley on end of
tension spring and back towards
pulley block slot in end of spring
box.
B. Pull cord snug tight and tie a
knot on cord in line with “V”
notch on spring box.
Knot tied in
snug tight cord
“V” notch in
spring box
C. Pull cord through pulley
block, stretching spring, and
place knot in pulley block slot.
Place knot in pulley
block slot
Pulley lined up
with rectangular
notch
18
D. Check spring tension after
the first open and close cycle
of the tarp. Spring is properly
tensioned when pulley settles
back and lines up approximately
with rectangular notch on spring
box. With spring tensioned,
wrap tape around cord 2” from
knot and cut excess cord at that
location.
16. INSTALLING SPRING BOX DOORS
5/16” x 3” pin
and cotter key
A. Align holes in untabbed door
with holes at end of box spring
and insert 5/16” x 3” pin and cotter
key. Bend tabs to secure. Repeat
for tabbed door at other end.
Untabbed door
Keeper pin
Tabbed
door
B. Swing doors closed with tab
door overlapping opposite door.
Both doors are designed with
camber to close. Push firmly until
both doors are closed. Insert
keeper pin through doors and
base of box.
DOORS ARE SECURED with
keeper pin. Always keep doors
closed with pin in place while
operating.
17. REAR TUBE CAP
A. On back of trailer, install black cap over end of roll tube.
19
18. INSTALLING CONNECTOR SOCKET
TIP: Dielectric grease is provided for electric wire connections. Use as
needed.
A. Bolt connector socket to dual pole
mount bracket using 5/16” x 1” bolts,
flat washers, lock washers and nuts.
Nut
Dual pole
mount bracket
Lock washer
Connector
socket
Flat
washer
5/16” x 1” bolt
B. Before cutting wire, form a loop on
arm that allows room for movement.
Mark where to cut wire for connector
socket at location on dual pole mount
bracket. Cut wire, strip only enough
insulation off to attach ring terminals
and heat shrink tube. Attach wires to
socket terminals.
Heat shrink
Stripped
wire end
Eyelet
Square
nut (2x)
Lock washer
3/8” x 3/4” bolt
20
Protective
fabric
Dual pole
mounting
bracket
C. Slide (2) square nuts into channel
on pivot mount. Place protective
fabric between dual pole mounting
bracket and pivot mount and secure
dual pole mounting bracket with 3/8”
x 3/4” bolts and lock washers.
19. SECURING MOTOR TO ROLL TUBE
Clevis pin
Split cotter key
Bend tabs on cotter key
Using motor switch, align motor shaft hole with tarp shaft hole. Insert clevis
pin and cotter key. Bend tabs to secure. Grease the zerk at this location.
OPTIONAL EDGE TRIM
NOTE: Some tall wind deflectors may cause increased friction and
slightly reduce return spring function. For smooth return operation, trim
air dam as needed. For tall air dams, end caps without hem or end caps
that were trimmed; apply edge trim onto edge of front air dam from
latch plate towards middle of air dam. Edge trim will not cover entire
end cap. Repeat at rear end cap.
Tarp
stop
side
Front end cap
Start applying edge
trim here and work
towards middle of
end cap
Latch
plate
side
21
OPTIONAL MOUNTING BRACKET FOR
SPRING BOX INSTALLATION
(Not included with tarp kits) If needed, call 800-233-4655 and order kit #70299
or purchase online from our website.
Note to installer: This bracket is intended as an alternative mounting point if
needed when installing spring box on trailer with exterior structural ribs.
1. Position bracket on solid mounting surface of box wall (between ribs) so it
fills gap between wall and spring box.
2. Mark bolting locations. Drill 5/16” holes. Fasten bracket to box wall with
3/8” x 1” self threading bolt (2x). Important: If mounting bracket to thin
sheet metal, use extra nuts, flat washer and lock washer (included in
kit) on back side of wall to secure bracket.
3. Mount spring box to bracket using button head bolts and lock nuts as
shown. Continue mounting remainder of spring box as specified in spring box
installation section of the owner’s manual.
Lock nuts (2)
Trailer rib
Spring box
Special
bracket
3/8” x 1” self
threading bolt (2x)
Button head bolts
22
23
MANUFACTURER’S LIMITED WARRANTY
Agri-Cover, Inc. extends the following limited warranty on its Electric Conversion Kit to the
original retail purchaser.
Agri-Cover, Inc. warrants its Electric Conversion Kit to be free from defects in material and
workmanship under normal use for one (1) year from date of manufacture unless accompanied
by proof of purchase.
ANY IMPLIED WARRANTY APPLICABLE TO THE ELECTRIC CONVERSION KIT IS
LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF MANUFACTURE UNLESS
ACCOMPANIED BY PROOF OF PURCHASE. Agri-Cover Inc.’s sole obligation under this
warranty or any implied warranty is limited to the repair or replacement at its option, of defective
parts only. No labor or service allowance is given or implied. IN NO EVENT SHALL AGRICOVER, INC. BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or exclusions of
incidental or consequential damages, so the above limitations and exclusions may not apply to
you.
For warranty call our Customer Service Department at 800-233-4655 to determine if only a
replacement part is needed or if the cover needs to be returned for inspection and repair.
Goods to be returned must have a pre-authorized RA# (Returned Authorization Number) –
obtained by calling the number above. Mark the number on the package and ship it freight
prepaid to address below. Agri-Cover will pay freight to return goods to sender.
This warranty does not cover any failure due to abuse, misuse, alteration, neglect, improper
assembly or installation, or improper maintenance.
This warranty gives you specific legal rights and you may have other rights which vary from
state to state.
Agri-Cover, Inc.
Customer Service Dept. 3000 Hwy. 281 SE, PO Box 508 Jamestown, ND 58402
800-233-4655 • 8:00 a.m. - 5:00 p.m., Central Time
Monday through Friday, except holidays.
24PN 90967_D
© 2016 AGRI-COVER INC. ALL RIGHTS RESERVED
051916