INTERLIFT ILF INSTALLATION MANUAL & CHECK-OFF SHEET Rev. 1.2, Date 08-04-2011 INTERLIFT, INC. a member of MBB 15939 Piuma Ave., Cerritos, CA 90703 Tel (888)-774-5844 Fax (562) 924-8318 Visit our website at www.interlift.net for up to date information and notifications If you received this product with damaged or missing parts, contact Interlift at (888)-774-5844
TABLE OF CONTENT PAGE Mount Tables & Mounting Gate 1 5 Tilt Cylinder 6 B 15 Sensor & Up Stops 7 Electric & Hydraulic 8 11 Foot Control 11 Hand Control 12 ILF Hydraulic Schematic 13 Final Adjustment and Settings & Check-Off Sheet 14 ILF Decal Placement 15 ** Please contact Interlift, Inc. for Special Installation not covered in this Installation Manual ** Please refer to Owner s Manual for Toubleshooting & Repairs.
F Dim Min 26" Max 33" F- DIMENSION (inches) Mounting Table 35 Min of 8" over lap 34 33 32 31 30 29 28 27 26 25 26 27 28 29 30 31 32 33 34 K DIMENSION ( inches) K Dim Min 26" Max 34" F Dim minus 11" 14" to max 24" 102" 67" 48" **Bed Height Ranges: Max=Unloaded / Min=Loaded Truck
26-1/ 2" 12" 14-1/ 2" 25-1/ 2" 1. Please refer to the ILF Mounting dimensions for maximum rear sill height and correct cut out dimensions before welding the bed extension to the rear sill. 2. Attach the bed extension to the rear sill with 4" long 3/16" welds every 12" along the top and bottom of bed extension. 3. Using the platform pins, align the liftarm with the holes under the bed extension. This will later align the platform with the bed extension. 4. Using a floor jack or a fork lift swing in the mount frame under the truck. 5. Square the mount frame with the truck floor. 6. After clamping the mount plates to the frame, tack weld them with a min of 4 ea. 1" welds to the mount frame and to the frame. 7. Lower the lift arm and attach the platform. Please go to electrical and hydraulic installation: 90. 00 48" MIN 8" 8. After completion of the electrical installation go ahead and test the liftgate to see if the platform is properly aligned with the bed extension in the up position. Warning!!! Be extremely cautius when testing. Remember that the liftgate is only tack welded in place. Do not power up against the bed ext. 9. After you are reasured that the liftgate is aligned, please go ahead and finish up the welding of the unit. 10. Make sure that you have a min of 8"of overlap between the mount plates and the truck frame.
The mount tube should be placed as high as possible to achieve better ground clearance, keep in mind that this also directly relates to the mount tube clearance. Make sure that you stay within the maximums and minimums given in the mounting tables. 1. Refer to mounting tables and determine the proper [S] dimension. If the sill is greater than what s allowed the sill has to be notched and capped to achieve original strength. Bend flat stock and weld 100% around the notch. 2. Locate and mark out the center of the rear body or bed sill. 3. Attach the INTERLIFT mounting fixture centered to the sill by tack welding it in place. Weld mount jig to rear sill
4. Slide mount tube in under the truck frame and attach the lift arm to the mounting fixture or attach the two lift arm pins to the platform. At this point you should place the mount tube in the predetermined position, keeping the given maximums and minimums in mind. You can use a forklift, a floor jack or a similar device to position the mount tube. Make sure that you place the tube at a 90-degree angle to the truck bed. 5. With the mount tubes held in place, position the mount plates over tube and against truck frame position them with angle facing forward and clamp them to truck frame.
6. Before any welding is started, please check that liftgate is balanced and not binding in mounting fixture, you should have equal pressure on each lift-arm pin. This is very important to make platform align with truck sill. 7. Be certain to pull out power tray before welding. The reservoir is made of plastic and you may burn it while welding. To pull out tray, just simply remove the bolt on the curbside and detach the ground strap and control power connector for the tray. Pull on tray until the hoses are stretched and the tank is further out than the point of welding. 8. Tack weld mount plates to mount tube with a minimum three one inch welds and three one inch welds to the truck frame. Before finishing up all welding we recommend doing the electrical installation and platform installation to make sure that everything aligns like it should. Use a min of 8" overlap between mount plates and truck frame Weld 100% with 1/4" weld against the frame and both sides of the plates against the mount frame
INSTALLATION AND ADJUSTMENT OF TILT CYLINDERS Adjust Tilt Cylinders at Clevis, so platform can be easily un-folded and stored. Loosen Lock Nut on piston, turn piston using flat areas. Clock wise to shorten. Counter Clock wise to extend. **Secure piston rod with lock nut when finished Adjust Bolts to level platform: Secure bolt with lock nut after adjustment
B 15 SENSOR INSTALLATION OF UP STOPS Install up stops for the lift arm in the position where the platform is level with the floor.
ELECTRICAL AND HYDRAULIC INSTALLATION When performing electrical and hydraulic installation, please be certain to install and secure everything in a way where it is not subject to damage from moving parts, sharp edges, exhaust systems, etc. 1. Determine location for fixed control box; locate it in a way that the operator can view the platform and surrounding areas while operating the liftgate. Also, locate in a way where the lid does not extend out side the van body when open. 2. Install the shut-off switch inside the cab. Lead the control cable together with the battery cable along the frame then up into the cab. Locate it in a place where it can conveniently be seen and reached from the driver seat as well as from the ground.
DO NOT USE 4 2 (-) 1 BACK SIDE OF ON - OFF CAB SWITCH MBB TERMINALS ARE MARKED ON GREEN BOARD OR ON WIRES Cable wires are marked: 1, 2, 4, Green Yellow = Ground (-) 1 = Hot Lead To Red L.E.D. Lights - WHITE (-) = Ground To L.E.D. Lights - GREEN YELLOW 2 = 12 Volt Power From Batteries - RED 4 = Control Power To Liftgate - BLUE 3. Install the battery cable between power pack and battery. Also, install the two 10 gauge wires for the control power to the batteries. Blue to positive with an inline fuse at the battery, brown to negative. Connect the power cable for the gate to the positive terminal on the battery. Secure the cable ever 12 inches against the frame with frame clips. Never secure cable in a way where it can make contact with other wiring, brake fuel or airlines etc or get pinched against other objects.
+ blue brown - + - + - 4. Inspect and test all electrical connections, wiring and the different functions to make sure that the electrical installation is complete. To do so, you have to connect the ground cable and control power connector again. 5. Make sure to install breather plug on the oil tank before running the unit, also check the fluid level with the platform on the ground. INTERLIFT POWER HOOK UP. Liftgate mount frame Main power cable for liftgate is attached to + on main batt. aux. batt. or trailer batt. From the two wire harness blue is attached to + with a fuse inline, brown is attached to -. Optional ground strap attached to trailer (ILUK only) Main Batteries, Aux. Batteries or Trailer Batteries ground 150 amp breaker To front plug on trailer or main batt.
6. When the platform is in the correct position in relation to truck sill, it is time to finish welding of mount tube. Make sure to have power pack pulled out when welding the tube. 7. Weld tube and mount plates with a 1/4 fillet weld 100% of the area around mount tube and around frame on both sides of plates. The plates must have a minimum of 8 of overlap on the frame. INSTALLATION & OPERATION OF FOOT CONTROL Make sure that connections are wire tied together and pushed inside the platform. DOWN: Step on switch 1 and hold wait between one and three seconds before you step on switch 2. UP: Step on switch 2 and hold wait between one and three seconds before you step on switch 1. The platform will tilt up to preset position before raising. IF BOTH SWITCHES ARE NOT ACTIVATED WITHIN THREE SECONDS, START OVER.
INSTALLATION & OPERATION OF HAND CONTROL BUTTON NO. 1 UP BUTTON NO. 2 TILT BUTTON NO. 3 DOWN BUTTON NO. 2 + 1 TILT UP BUTTON NO. 2 + 3 TILT DOWN For the Installation of hand control, take the harness that is attached to the side control box. Connect all wires together according to cable ID s. Use heat-shrink to seal the connection. 2 Button Hand Control 3 Button Hand Control Up - 5 - Red Up - 5 - Yellow Down - 6 - Yellow Down - 6 - Orange 12V Hot - 4 - Green 12V Hot - 4 - Red Tilt-Up - 3 - Blue Tilt-Down - 14 - White Existing Wire on Gate: 1. Find hot wire & touch hot wire to other wires. 2. Note function and match to above.
FINAL ADJUSTMENTS AND SETTINGS Lift Gate Serial # 1. Remove the three plugs for the foot switch and warning lights from out of the platform, connect with the plugs coming from the lift arm (yellow with yellow, black with black, and the plugs identified by cable binders), and relocate the plugs, all wired tied together. Push all connections into the platform and remount the pullrelief. 2. Close platform to vehicle body. 3. All attached cables must be carefully laid and securely fastened. The cables must be sufficiently flexible. 4. Lower the platform until it is about 10 inches above the ground. Set switch b-13 on the right-hand torsion lift arm so that it is positioned horizontally. Undo the bolt and retighten it after setting. Bend the aluminum tab by the mercury switch to secure it from loosening. 5. Raise, lower, open and close the platform several times in order to ventilate the cylinders. 6. Check the oil level with the platform lowered. 7. Make sure the Cab switch is working properly, LED s turn off when gate is closed and stay on if the lift is switched off with the platform open. Platform lights turn off. 8. Make sure all grease zerks are installed 9. Make sure tilt cylinder lock nuts are tightened.
ILF DECAL PLACEMENT For operator safety, all decals appearing in Decal Kit must be in a conspicuous place on control side of liftgate. This is typically a combination of decals on the liftgate and truck or trailer body. Please make sure to place the maximum capacity decal (C) on driver and curb side. (A) 1 ATG-URGWA - Urgent warning: Elevating gate instructions (C) 1 ATG-BKR - Circuit Breaker Reset (must be located at the circuit breaker) (D) 2 ATG-XXXX - Max. Capacity (please check the serial number plate to find out your specific capacity) (E) 1 ATG-RESET - Circuit Breaker Protection (F) 2 ATG-WLH - Warning: liftgate can crush (G) 2 ATG-CTN - Caution: Always stand clear of platform area (H) 1 ATG-CAB - Liftgate Shut-Off (Place Decal next to the On-Off Switch in the Cab) (K) 1 ATG-WNG - Warning: Use handle to open (must be located underneath handle (main section)) (L) 1 ATG-FT- Notice for Foot Control (if applicable) Decal - A Decal - E Decal - C Decal - D Decal - H Decal - F Decal - G Decal - L Decal - K
(A) 1 ATG-URGWA - Urgent warning: Elevating gate instructions (B) 1 ATG-ILR-ILFS - Operational Instructions (C) 1 ATG-BKR - Circuit Breaker Reset (must be located at the circuit breaker) (D) 2 ATG-XXXX - Max. Capacity (please check the serial number plate to fi Decal G (E) 1 ATG-RESET - Circuit Breaker Protection Decal D Decal L Decal F Decal E Decal A Decal K