Wilson Trailer HYDRO-Trap User manual

HYDRO-Trap Operator’s Manual
This manual has been prepared to help you operate your HYDRO-Trap successfully and safely. Should you have
any questions, we ask that you contact a Wilson Trailer factory representative immediately for a clear explanation.
NOTE: Wilson Trailer constantly makes product improvement to its product line. Your trap may
vary slightly from the equipment described and/or pictures in this manual.
We thank you for expressing your confidence in us through the purchase of your new Wilson HYDRO-Trap.
We want you to know that it was designed to meet your specific needs and is built for long life and low cost
operation. With regular, proper maintenance and your common sense, we are confident that it will do so.
Additional manuals and decal kits are available without charge.
MODEL NO. SERIAL NO.
Wilson Trailer Company
Operators Manual for
HYDRO-Trap

HYDRO-Trap Operator’s Manual
This safety alert symbol is to raise your awareness to important messages in this manual. When
you see this symbol, be alert to the possibility of personal injury and carefully read the message
that follows.
GENERAL INFORMATION
General Description .....................................................1-1
SAFETY
Hydraulic Injection........................................................2-1
Decals and Emblems....................................................2-1
OPERATION
Power Requirements....................................................3-1
Lubrication Requirements ..........................................3-1
HYDRO-Trap Operations.............................................3-2
HYDRO-Trap Manual Operation ..............................3-2
HYDRO-Trap Wireless Operation.............................3-3
HYDRO-Trap Remote & Receiver Information .....3-4
Inspection - Step 1.........................................................3-5
Inspection - Step 2.........................................................3-8
Inspection - Step 3.........................................................3-10
TABLE OF CONTENTS by SECTION
GENERAL MAINTENANCE
General Maintenance..................................................4-1
Repair and Service Parts..............................................4-1
Hardware Install Guide ...............................................4-1
Hydraulic Fluid...............................................................4-2
Notes About Oil.............................................................4-2
Schematics.......................................................................4-3
Wiring Diagram .............................................................4-3
Troubleshooting............................................................4-4
Potential Issues...............................................................4-4
Resolution Procedures.................................................4-4
Cab Wiring Kit Installation..........................................4-15
CONSUMER INFORMATION
Warranty Coverage ......................................................5-1
Major Component Coverage ....................................5-1
Limitations and Disclaimers .......................................5-2
Product History ..............................................................5-3
Index..................................................................................5-4

HYDRO-Trap Operator’s Manual
The HYDRO-Trap utilizes hydraulic cylinders to open and
close the traps. The hydraulic pump is powered by the tractor
through the cab wiring kit with a master disconnect switch.
The hydraulic traps are activated with the control panel located
at the center of the trailer or by the optional remote. The
standard remote control system operates the HYDRO-Traps and
a Shurco 4500 Smart 3 Series power tarp. An accessory output
is available to operate lights by remote.
General Description
General Information 1-1

HYDRO-Trap Operator’s Manual
The following section contains the decals and emblems specific
for this HYDRO-Trap.
2-1 Safety
Decals and Emblems
SAFETY
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WHITE MATERIAL (2) COLORS BLACK & PMS 7462
Hydraulic Injection
WARNING
When working on a Hydraulic System, always insure
hydraulic lines have been depressurized. Hydraulic injection
can cause loss of fingers and even loss of life in severe cases.
Hydraulic injection can seem like a bee sting. If you are ever
bitten by hydraulic injection go directly to the emergency
room for treatment.

HYDRO-Trap Operator’s Manual
OPERATION
Operation 3-1
Power Requirements
CAUTION
Make sure all power supply to trailer is disconnected
and the ground wire in the nose of the trailer and on
the receiver box is disconnected prior to any welding
on trailer. Failure to do so could result in damage to
receiver control box!
It is required that Cab Wiring w/Disconnect switch be installed in the Tractor to Power the Hydro-Trap (WTC
P/N APP04780YZ). This kit includes a Master Disconnect. It is recommended this be installed in the cab of
the tractor and turned to the ON position ONLY when the traps need to be operated. This kit includes a
120 amp resetable breaker required for the HYDRO-Trap option.
In order to operate, this system requires two power supplies:
1. The control system logic power is supplied a constant nominal 12v by the 7-way center pin (blue
wire) and grounded by the bottom (larger) ground pin (white wire). These connections must be kept
in good repair. Chassis ground is not adequate or reliable. The ground connection of the 7-way must
have a good connection to the tractor ground.
2. The pump motor power and ground are supplied via a heavy gauge high current Shurco 2 pin
connector at the front the trailer. Tractor wiring kits are available from Wilson Trailer and are the
only approved system for powering this unit. Note: Previously installed cab wiring kits for
powering Shurco power tarp or trap openers use the same connector but do not supply
adequate power to operate the unit when loaded.It is possible to retrofit these tractor systems.
(Contact WTC service for details.) The cab wiring kit must be installed per instructions (including the
Master Disconnect Switch and 120 amp slow-trip circuit breaker module). The installation should
use sufficient cable to comfortably reach components and support maintenance, but avoid coiling
up excess as any extra cable length reduces power available to the motor. Chassis ground is not
adequate or reliable, ensure that the ground cable is connected to a tractor battery cable. All high
power connections need to be kept in good repair. For maximum door opening force and
speed, the trap should be operated with the tractor running.
Lubrication Requirements
Only use Petro-Canada Hydrex MV Arctic 15 Hydraulic fluid or
any mineral based hydraulic oil between 10 cSt and 100 cSt at
your ambient outdoor operating temperature.

HYDRO-Trap Operator’s Manual
3-2 Operation
OPERATION
HYDRO-Trap Operation
WTC recommends the Cab Wiring w/Disconnect switch be installed in the tractor to power
the HYDRO-Trap (WTC P/N APP04780YZ). This kit includes a Master Disconnect. It is
recommended that this be installed in the cab of the tractor and turned to the ON position
ONLY when the traps need to be operational. It should be turned to the OFF position when
the traps are not required to be operational. This kit includes a 120 amp Breaker required
for the HYDRO-Trap option.
Disconnect power before servicing. Make sure all power supply to trailer is disconnected
and the ground wire in the nose of the trailer and on the receiver box is disconnected prior
to any welding on trailer. Failure to do so could result in damage to receiver control box.
IMPORTANT NOTICE
HYDRO-Trap Manual Operation
1. Turn Master Disconnect Switch in the tractor to the
“ON” position.
2. Make sure tractor is running and all connections to the
trailer are hooked up.
3. Verify that all personnel are clear of the power trap
and tarp (if equipped) before operating either.
4. Press and hold button for desired operation (Open or
Close).
5. Close trap door when finished unloading.
6. When finished operating the traps, turn Master
Disconnect Switch in the tractor to the “OFF”
position.
CAUTION
The hydraulic cylinders and trap doors/frames
may be damaged if trailer is transported with
the doors in the open position.

HYDRO-Trap Operator’s Manual
Operation 3-3
OPERATION
HYDRO-Trap Wireless Operation
NOTE
A Shur-Co Smart 3 electric tarp (if
equipped) can also be operated by a
Shur-Co Smart 3 remote control. (WTC
P/N APP04780AEH
1. Make sure tractor is running and all connections
to trailer are hooked up.
2. Turn Master Disconnect Switch in the tractor
to the “ON” position.
3. Verify that all personnel are clear of the power
trap and tarp (if equipped) before operating
either.
4. To turn the remote “ON”, press and hold power
button on remote for 3 seconds and release to
turn on remote. The red and green lights will
be on simultaneoulsy when pressing the power
button. The green light will double flicker after
releasing the power button.
5. Press and hold button for desired operation
(Open or Close). Hopper 1 is the front trap;
Hopper 2 is the rear trap.
6. To turn remote “OFF”, press and hold power
button on remote until the two LED’s (red and
green) turn off. Red and green lights alternate
flashing until they both turn off to indicate the
power is off. Remote will automatically turn off
after 15 minutes of inactivity.
7. When finished operating the traps, turn Master
Disconnect Switch in the tractor to the “OFF”
position.
8. Momentarily press the tarp open or close button
to operate the tarp in Shurco Smart 3 express
mode.
9. ACC momentary buttons will turn and hold
accessory functions on or off. Accessory will stay
in the last position after disconnecting power.
CAUTION
The hydraulic cylinders and trap doors/
frames may be damaged if trailer is
transported with the doors in the open
position.
Remote (APP-05225-B)

HYDRO-Trap Operator’s Manual
OPERATION
3-4 Operation
HYDRO-Trap Remote & Receiver Lights & Error Code Information
1. When turned on the green LED on remote will flash.
2. The red LED will blink (once/second) when the remote
battery gets low. The green light will still operate when
the power is low.
Remote (APP-05225-B)
Receiver (APP-05225-F)
RED (Error Code LED)
GREEN (Signal LED)
RED (Error Code LED)
GREEN (Signal LED)
3. When receiver has power and the remote control is
off, only the red LED on the receiver will blink (once
per cycle). When the remote is connected to receiver
the green LED on the receiver will blink. The red error
code will blink twice per cycle if remote has low voltage
(below 11 volts). The green light can still blink when
the power is low.

HYDRO-Trap Operator’s Manual
Operation 3-5
INSPECTION
HYDRO-Trap System Inspection
Perform all inspections in order: No power to trailer; Add 7-way power; Add dual conductor
power.
This inspection assumes the common installs having a Shur-Co 4500 power tarp with a Smart
3 control module, electrical connections are Grote bullets or Deutsch connectors, tractor
has 120 amp kit installed with 120 circuit breaker and disconnect switch, and a Kar-Tech
receiver and KTI hydraulic pump unit installed in the apex of the trailer. Older units may have
connections with crimped bullet connections covered with heat shrink. Several models may
have the receiver and hydraulic power unit mounted over the kingpin.
Inspection Step 1: No Power to Trailer
Tractor power supply and connection to trailer
Disconnect the tractor 7-way and dual conductor cables from the trailer to perform the initial inspection.
Test the 7-way cable voltage output between the center pin auxiliary/ABS power and the ground pin. The
ground pin is the largest of the seven and at the top of the connection.
Test the voltage output of the dual conductor cable. Confirm the 120 amp circuit breaker is installed and is
in the set position. Confirm the main power disconnect switch is on. Both the 120 amp circuit breaker and
disconnect switch must be connected to the positive terminal with the circuit breaker closer to the battery.
Inspect disconnect switch, circuit breaker, connections, plugs, and cables for corrosion.
Front of trailer; outside
Examine the 7-way and dual conductor connections at the front of the trailer for debris buildup, corrosion,
deflected or loose pins, or other damage. Clean corrosion or debris buildup from connectors. Examine the
tarp module for damage. Depress open and close button functions for feel of operation.
Front of trailer; inside above kingpin
Inspect the inner wall of the front, above the
kingpin. Examine the blue wire power and
white wire ground connections from the
main harness. Inspect the dual conductor
power connections.
Inspect the connections on the tarp module,
dual conductor power system, and control
wire connections. Check the 40 amp fuse
holder for signs of corrosion or debris
buildup and clear drain holes if plugged.
Examine dual conductor cables entering
sidewall of trailer.
REFER TO TROUBLESHOOTING SECTION IF PROBLEMS ARE IDENTIFIED.

HYDRO-Trap Operator’s Manual
3-6 Operation
Inspection Step 1: No Power to Trailer (Continued)
INSPECTION
Receiver
The receiver is located towards the middle of the trailer
between the hoppers. Examine power and tarp wires,
and connections from the side of trailer to the receiver.
The receiver has two cables existing the bottom and an
antenna at the top (2.6”). Examine receiver for damage,
missing antenna, and cable strain at the receiver bottom.
The driver side cable connects the receiver to the manual
button inputs in the rubrail. Examine the four connections.
An auxiliary input plug (yellow and red wire pair) should
have a cover if not in use.
Manual Button Switches
Depress the manual buttons and compare each for a similar
feel and sound. Examine where the input wires run through
the rubrail for damage or missing grommets/silicone.
Examine the receiver curb cable which runs to the hydraulic
pump unit. Eight wires run to the valve control solenoids,
two to main power, two to the tarp module if equipped,
and one to the motor starter relay.