Tronair 14-6878-0110 – Hydraulic Aircraft Tire Bead Breaker (CE)
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The Tronair 14-6878-0110 Hydraulic Bead Breaker is an easy-to-use device for breaking the tire bead on rims 12" to 28" (30.5 to 71.1 cm) in diameter for tire sizes of 28" to 54" (71.1 to 137.2 cm) in diameter. An adapter kit (K-3151) may be purchased separately to allow for tires as small as 18" (45.7 cm) in diameter.
The tire bead breaker uses a hydraulic cylinder driven by a pneumatic pump. The hydraulic controls are located in a manifold block, and the cylinder operation is controlled through a foot-pedal pneumatic valve.
Standard Features
- Rugged welded steel construction with aluminum breaker spindle
- Pulsating pneumatic pump aids in breaking the toughest tire beads
- Single control panel allows for both vertical and horizontal travel
- 10 adjustable breaker pad settings eliminate the need for ring adapters
- Entry ramp and sliding rail make loading and positioning easier
- Horizontal mechanical extension from the cylinder for final width adjustment
- Approved for use on radial tires
- CE marked
- Durable powder-coat finish (Tronair Blue)
Specifications
- Hydraulic Force: 12 tons (10.9 metric tons)
- Shop Air Requirements: 80 to 120 psi (5.5 to 8.3 bar)
- Fluid: MIL-PRF-5606
- Rim Sizes: 12" to 28" (30.5 to 71 cm)
- Dimensions: 121" L x 40" W x 62.5" H (307 x 102 x 159 cm)
- Weight: 1,400 lbs. (635 kg)
| General Information | |
|---|---|
| Part # | 14-6878-0110 |
| Manufacturer | Tronair |
| NSN | 4910015882683 |
| Manual 1 | View Tronair 14-6878-0110 Parts, Service, and Operation Manual |
| Shipping Information | |
|---|---|
| Shipping Weight | 800 lbs. |
| Shipping Dimensions | 77 x 55 x 60 in. |
| Freight NMFC | 133300 |
| Schedule B | 8479899900 |
| ECCN | EAR99 |
| Accessories/Kits/Adapters | |
|---|---|
| K-3151 | Small Tire Adapter Kit for breaking tires with rim sizes 18 in (45.7 cm) or less diameter |
| Spare Parts | |
|---|---|
| 16771 | Air Valve Seal Kit |
| 16772 | Air Drive Seal Kit |
| 17571-10 | Liquid Section Seal Kit |
| G-1100-109512 | Bolt, ½-20 Hex Head Grade 5 |
| G-1250-1090N | Flatwasher, ½ Narrow |
| G-1251-1090R | Lockwasher, ½ Regular |
| G-1255-09 | Washer, ½ AN |
| G-1300-38100 | Pin, Roll 3/8 x 1 |
| G-1395-57 | Ring, External |
| G-1398-212 | Ring, Retaining |
| G-1420-109520 | Bolt, HH Grade 8, ½ - 20 x 2" long |
| H-1045 | Breather |
| H-1884 | Bearing, Roller |
| H-3094 | Clamp, Toggle |
| HC-1619-4000D | Wiper, Ring |
| HC-1621-212 | Seal, Polypak |
| HC-1655-09 | Ring, Wiper |
| HC-1716 | Valve, Cartridge Needle |
| HC-1837 | Valve, Directional Control |
| HC-2000-041 | O-ring Series 2 |
| HC-2000-048 | O-ring Series 2 |
| HC-2000-117 | O-ring |
| HC-2000-214 | O-ring |
| HC-2000-326 | O-ring |
| HC-2000-346 | O-ring Series 2 |
| HC-2020-214 | Ring, Backup |
| HC-2020-326 | Ring, Backup |
| HC-2023-346 | Ring, Backup, One Piece |
| J-2977 | Block, Stop |
| J-2978 | Finger, Top |
| J-4133-01 | Plate, Cylinder |
| J-4134 | Block, Slide |
| J-4236 | Gear, Lock |
| K-3143 | Kit, Cylinder Seal Replacement |
| K-3151 | Kit, Small Tire Adapter |
| N-2001-03-S-B | Elbow, Straight Thread (-04 x -04) |
| N-2007-03-S-B | Connector, Straight Thread (-04 x -04) |
| N-2053-03-S-B | Plug, Hex Head Straight Thread (-04) |
| PC-1083 | Air Pump |
| R-1818 | Plug, Stop |
| R-1971 | Rod, Roller |
| R-2309 | Plug, Front Ram |
| R-2310 | Plug, Rear Ram |
| R-2312-01 | Support, Cylinder |
| TF-1043-01*105 | Assembly, Hose |
| TF-1043-01*18.0 | Assembly, Hose |
| TF-1043-01*24.0 | Assembly, Hose |
| TF-1043-01*45.0 | Assembly, Hose |
| TF-1043-01*60.0 | Assembly, Hose |
| TF-1047-01*12.0 | Hose, Push-On |
| TF-1047-02*36.0 | Hose, Push-On |
| TF-1047-02*96.0 | Hose, Push-On |
| TF-1047-05*25.0 | Hose, Push-On |
| TR-1678 | Ring, Locking |
| TR-1702 | Tube, Roller |
| TR-1987 | Tube, Ram |
| TR-1988 | Bushing, Ram |
| TR-1989 | Ring, Guide |
| TR375-05*000.58 | Spacer |
| V-1001 | Label, "Made In USA" |
| V-1197-02 | Label, "Tronair" |
| Z-4385 | Assembly, Foot Pedal (includes Items 6 & 7) |
| Z-4523-01 | Weldment, Small Tire Adapter |
| Z-4524 | Assembly, Small Tire Adapter; consists of: |
| Z-6636-01 | Weldment, Main Cylinder |
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AIRCRAFT COMPATIBILITY
PRODUCT REVIEWS
QUESTIONS & ANSWERS
Operators should undergo proper training provided by their employer before using the 14-6878-0110 Hydraulic Bead Breaker. The training should cover safety protocols, proper handling of the unit around aircraft, and step-by-step procedures for bead breaking. Only trained personnel should operate the bead breaker, while troubleshooting and maintenance should be performed by skilled technicians.
The unit requires MIL-PRF-5606 hydraulic fluid, a standard aviation-grade fluid known for stability and performance in extreme conditions. When all cylinders are fully retracted, the bead breaker reservoir holds approximately 2.5 gallons. Keeping the fluid topped off and clean is essential to maintaining reliable hydraulic performance.
The bead breaker should be securely mounted to the floor or a solid fixture using the six 5/8” mounting holes provided in the frame. This prevents unwanted movement during operation, ensuring both operator safety and accuracy in bead separation. Improper mounting could compromise safety and lead to uneven force distribution on the tire.
Yes! While the standard configuration accommodates rims from 12” to 28” and tire sizes from 28” to 54”, Tronair offers the K-3151 Small Tire Adapter Kit. With this kit, the unit can handle tires as small as 18” in diameter, making it versatile across multiple aircraft types.
Operators should never attempt to disassemble a wheel before the tire is completely deflated, as trapped pressure can eject components at high velocity. Similarly, valve cores must be removed only after all air pressure is released. The bead breaker’s finger blocks must be correctly positioned to avoid contact with the rim, as improper alignment could cause wheel damage.
The maximum hydraulic working pressure is 1,725 PSI at an input air pressure of 150 PSI. When operated properly, this level of force is sufficient to safely break the bead on heavy-duty aircraft tires without overloading the rim or risking damage.
Routine maintenance includes visual inspections for wear or damage, ensuring mounting hardware remains secure, and keeping hydraulic fluid at the proper level. All troubleshooting and major maintenance should be performed by trained technicians. Preventative care helps extend the service life of the bead breaker and minimizes downtime.
Tronair offers a one-year warranty against defects in manufacturing or materials from the date of shipment. Replacement parts carry a 90-day warranty. Unauthorized modifications, use of non-OEM parts, or ignoring caution/warning notices will void warranty coverage.
