Quadra Bigfoot User manual

Version #1122
1 Point & 2 point
Round Leg Systems
INSTALLATION Guide • OWNER’S MANUAL
Quadra Manufacturing, Inc.
305 US-131 South
White Pigeon, MI 49099
800•752•9815
BIGFOOTLEVELER.COM

Understanding which system you have:
Basic 1point:
Toggle switch mounted on the backside of the tank assembly, one jack, one pump.
Standard 1point:
Hard wired weatherproof control switch, one jack, one pump.
Wireless 1point:
Wireless key fob & emergency switch inside tank, one jack, one pump.
Standard Slave:
Hard wired weatherproof control switch, two jacks, one pump, does not adjust side to side.
Wireless Slave:
Wireless key fob & emergency switch inside tank, two jacks, one pump, does not adjust side to side.
Standard 2point:
Hard wired weatherproof control switch, two jacks, two pumps, can level from side to side.
Location of your tank assembly:
Direct mount:
This is when the tank assembly is bolted directly to the cylinder bracket either utilizing the cylinder mounting
bolts or the supplied full threaded bolts. This set-up is recommended due to the fact that the hoses are shorter
decreasing the chances of a hose being damaged.
Remote mount:
If the tank cannot be mounted to one of the cylinders then a remote mount is required. You can choose to
directly bolt your tank to the vehicle frame or cross-member, some securely fasten the tank inside a storage box.
Or you can choose to order another bracket that can be welded or bolted to the vehicle.
Location of your cylinders:
Trailer Front:
Single or Dual cylinder systems should have the front cylinders on the exposed A-frame of the trailer or on
structural frame near the front, take care not to interrupt the ground clearance of the trailer during
transportation (pulling into parking lots, etc.).
Trailer Rear:
Mount behind furthest rear axle, tuck close as possible to axle and axle suspension components without
interfering with their moving parts (Ex. Leaf sprint perch). Take care not to interrupt the ground clearance of the
trailer during transportation (pulling into parking lots, etc.). If there is a slide out on the trailer, modification to
the mounting bracket may be necessary or call to order deeper bracket, etc.

Mounting the Cylinders
Make sure weld-on bracket is mounted vertically, it is easiest to bolt the cylinder to the bracket, then place up to
the frame with a floor jack, verify that the jack is at appropriate height (typically 9-11” off the ground) and
vertically level, then proceed to getting full weld from bracket to frame. Cylinders may also be bolted directly to
the frame, however included hardware may not be long enough, make sure you replace with 7/16”grade-8
hardware, minimum of four for 8k and 12k jacks, and six for 17k and 24k jacks. For slave systems you have
options for plumbing, you can place the “tee” fittings on the pump or you can place them both on one of the
jacks. Cylinder, mounting bracket, weld-on bracket and footpad may vary from application to application. For
different brackets, cylinders or footpads feel free to call!
Limit switch not required
for 1pt & 2pt Systems
7”FOOT PAD #M27610

Tank Assembly Diagram
Assembly with standard motor #M26850
Assembly with manual override motor #M26855
98oz. PLASTIC RESERVOIR
#M25507

To hookup the power attach the supplied eyelet to each end of the supplied 5’ battery cable.
Attach one end of the cable to the positive battery terminal, place the other end to the lower solenoid post
with the copper strip on the tank assembly. Auxiliary ground may be recommended, attach to a solenoid
mounting stud on each solenoid and route 10 ga. cable to frame or negative terminal of battery.

Wiring Wireless Control to Tank Assembly…
Grey: Retract Solenoid Operation Post, Blue: Extend Solenoid Operation Post, Orange: Cap off (not used),
Red: Solenoid Power Stud w/ Copper Strip, Black: Ground (to solenoid mounting stud to tank body).
Two screws can be mounted
at any corner, take care to
avoid plastic reservoir.
Plumbing of Hydraulic Lines…
1pt or Drive Leg: If the tank hoses are not already connected to the leg, the left fitting on the tank
assembly goes to the bottom fitting on the Bigfoot Jack, (the longest hose.)
2pt Slave Legs: Install “T” fittings at the drive leg’s ports, run the short hoses from the tank assembly to
the “T” fittings, run the longer hoses to the slave or driven leg.
Hydraulic Line Bleeding Process…
Prior to hooking up both slave leg hydraulic lines; install the retract line only, leave the extend line un-
attached at the slave leg and place the line in a container (the same container used for filling the reservoir
works well). After filling the reservoir and installing the controls and power (may be temporary), press the
extend button on the control to extend the jacks for a moment until the container starts to be filled with
the fluid from the slave leg’s extend line. This means all the air is removed from that line and cannot be
internally trapped in the system. Install the extend line to the slave leg and continue to run the jacks to full
extension and leave for a moment (typically 15 minutes) and back down again. After doing so, top off the
hydraulic reservoir and process complete!

Included is a harness (#M43800)
that routes from the tank assembly to
the rocker control switch. The red
wire is the 12V power, this goes from
the power stud on the tank assembly
(on copper strip with 5/16” studs
from solenoids) to the center post on
the switch. The black wire is ground &
is not needed for this switch. The
grey wire goes from the retract
operation post on the retract
solenoid to the post labeled “1” on
the switch. The blue wire goes from
the extend post on the extend
solenoid to the post labeled “3” on
the switch. The switch is not
waterproof & must be installed inside
the coach.
Typical Plumbing For 2 Point “Slave” Systems (one pump, two jacks)
Rocker
Switch
Controls

Three Sided Tank Cover
(Fastens with 2x #10 self-tapping screws, take care not to hit reservoir)
Steel #M12013, Black ABS #M12002

Component & Electrical Final Preparations…
Hydraulic jack requires 12 volt battery; make sure you use at least a 4 gauge battery cable for the
power to the jack.
Remove three sided cover from tank assembly (if installed).
Install hydraulic lines with 15mm wrench, fittings on cylinders/pump require 9/16”wrench. Hoses are
generic for the kit and may be setup for a direct mount setup (pump mounted to cylinder’s angle
bracket, two 7/16”bolts per pump). If you need longer hose, call Quadra and order longer or go to
local hardware store and get ¼” hose with #4 JIC Female fittings, hose rated for 2,700 psi.
(Standard kits) Mount weather proof control box assembly in a convenient location making sure to
allow enough wire harness to reach the tank assembly.
Most trailers have the battery mounted on the front of the trailer in a box; install the 80 amp breaker
(if equipped) using the self-tapping screws in-line somewhere between the jack(s) and the battery. If
your jack kit did not come with a breaker, it probably does not require one.
Hooking up the breaker: Using a 4 gauge battery cable (if equipped); attach one end of the cable to the
bottom solenoid on the lug with the copper strip. Route the cable to the breaker at the post marked
AUX. Then attach the other cable (if equipped) from the breaker post marked BAT and route the cable
to the battery positive (DO NOT CONNECT UNTIL THE REST OF THE TANK WIRING IS COMPLETE).
(Standard kits) Route the harness from the switch box through the grommet on the back of the pump.
Connect the green (or blue) wire with the white strip to the small post on the top solenoid (make sure
to use the push-on connector if supplied). Next, connect the solid green (or blue) wire to the small post
on the bottom solenoid. You may now connect the battery cable to the battery.
In the event the Tank Assembly is not attached or mounted to steel; it is necessary to attach the
Auxiliary Ground cable from tank assembly to the frame. (If tank Assembly is mounted to steel, the
ground is reached thru the tank body and frame of vehicle.)
At this point add fluid (ATF DexIII) to the pump (green fill tapered plug) make sure you fill the tank so
that the fluid is 1”-1 ½” below the top (two quarts per pump).
Check all hardware and fittings to make sure they are tight.
Then you must press the extend button and fully extend the jack(s) until it reaches full extension. Let is
set this way for 30 minutes, this bleeds the air from the lines.

Troubleshooting Guideline
#1 issue is poor battery connection or low charge, so check that first!
“The jack runs for a few seconds, then stops”
The battery is weak or the battery capacity has diminished.
An auxiliary ground is needed from the tank assembly to the trailer’s frame.
“The jack only runs in one direction”
Check battery voltage.
Check all wire connections & for proper plumbing.
Check for air in the lines, extend system completely, let stand for 30 minutes.
“I push the switch but nothing happens”
Check both positive & negative 12V connections.
Check for full charge of battery.
Check that tank assembly has proper ground.
Check wiring connections.
“The jack is jerky when retracting”
There may be air in the system, see bleeding procedure earlier in the booklet.
Low fluid level (Must be 3/4” below top of reservoir)
Incorrect hose installation.
To purge system, add necessary fluid and extend leg completely and leave for 30 mins.
What Hydraulic Fluid do I use?
Automatic Transmission Fluid (ATF): Dexron II, Dexron III, ATF+4, Mercon, Mercon V
Medium Tank Assembly (Plastic Reservoir)
Plastic Foaming of fluid or overflow in reservoir….
Check fluid level of reservoir with legs retracted (should be ¾”-1” below top).
Cylinders (Prior to 2008, cylinders only have 5 year warranty)
Cylinders “creep” down when not in use… Check fluid level, OR Bleed System (air in the system)
Hydraulic Fluid on footpad or on ground around cylinder… Loose fitting or broken hydraulic line.
Cylinders “creep” down or don’t hold pressure when lifting/holding coach…
Check fluid level
Check for leaks in hydraulic lines/fittings… if lines damaged, have them measure and order
replacements from Quadra
Possibly plumbed backwards… (Bottom port on jack should connect to left port on pump)
Relief Valves have failed on pump motor… replace motor/tank assembly
Hydraulic seal failure, check for oil around bottom of cylinder… replace/return cylinder OR seal kit

Warranty Guide
1 Point & 2 Point Systems: Limited 1 year on parts and labor.
•Should the product be defective due to workmanship and/or material flaw,
we will repair or replace the defective material.
•Core charges may be applied / refunded.
Quadra is NOT responsible for:
Freight on warranty parts.
Replacing footpads, bolts, or fluids lost as a result of failure to maintain the system (Loose footpads
should be tightened at owner’s expense).
Damages caused by abuse, misuse, negligence, misapplication, error of operation, accidental
or purposeful damage or faulty installation. Including but not limited to hoses, fittings & wiring
components.
Liability for loss to the vehicle, or apparatus or property, loss of time, manufacturing costs, labor,
material, loss of profits, consequential damages (direct or indirect).
For transportation to and from a service center, onsite service calls to or from the customer, damage
from road hazard, loss of salaries, commissions, lodging, towing charges, bus fares, car rentals, fuel
expense, telephone charges, inconvenience compensation while repairing or replacing a defective
part or material.
Effective Date: 1/1/2022
(This warranty voids all previous versions.)
OWNERSHIP MUST BE REGISTERED WITHIN 30 DAYS FROM THE DATE OF PURCHASE TO
ACTIVATE WARRANTY.
Prior to any work being done an authorization number must be obtained by calling
269-483-9633 for Warranty Parts or Service Labor. For full warranty transcript just contact us!
Service labor based on a flat rate schedule determined by Quadra for authorized work performed will be reimbursed.
This will eliminate much diagnostic time and avoid refusal of unauthorized claims.
Many problems may be resolved by contacting a Quadra Service Representative.
Credit card payment arrangements at time of order will be nullified upon our receipt of your defective parts.
All returned parts need to have the repair authorization number and be received within 30 days of original order to avoid charges.
Provide the system serial number here: