General Characteristics - Rothenberger ROBULL 2 Instrucciones De Uso

1.

General characteristics

With the rothenberger pipe bender you can cold bend galvanized or black steel pipes of the following types,
without filling, and without reamers on the inside:
The angles we can effect with these benders range from 0º to 180º. A right angle can be made directly, while
others can be effected with several curves.
These angles can be in different planes. The equipment could be hand operated or electrically, with automatic,
piston return.
Its main features are:
Nominal power: ................................................ 8 Tn
Maximum travel: ............................................... 270 mm.
Piston diameter: ................................................ 34 mm.
Pump piston diameter: ..................................... 16 mm (hand operated)
Volume of top-up oil: ........................................ 850 cc.
Oil to be used: .................................................. ISO 32 or similar.
2. Starting up and using the two-plate pipe bender
1. Fit the guide plates to the front flange and secure them with pins.
2. Fit the diabolos to the lower plate, in the position corresponding to the size of the pipe to be bent.
At the same time fit the diabolo in position in accordance with the size of the pipe.
3. At the end of the piston, fit the former corresponding to the size of the pipe that it is desired to
bend. Place the pipe in position and put down the upper plate.
4. In the event that the pipe to be bent is welded, the weld beam should be placed either in the upper
or lower side position.
5. Before starting to use the pipe bender, release any pressure there may be in the valve system of the
hydraulic circuit. Do this by opening the return cock and pumping several times with the lever or
switch on the motor.
6. Make sure the return valve is well closed, and the tank plug open
7. You can then begin to operate the pump lever or switch on the motor.
8. When the bend has been finished, return the piston by loosening the return valve on the side of the
distributor
3. Training and maintenance
Check oil level at regular intervals. When topping up, be especially sure to filter the oil so that it is free of
extraneous matter. Check its level by lifting the front part of the unit about 45º and looking in. The oil should
reach the level of the hole used for loading it in.
When the oil has been topped up, fit the unit in inclined position, i.e. almost vertical, and with the piston upward.
Open the return valve and work the pump with the lever until suction is as it should be. After a short space of time
with the position unchanged, and when suction is satisfactory, fit in horizontal working position.
In the event that it is necessary to top up, use a high-quality hydraulic oil. Never use brake fluid. Bear in mind that
excess of oil will render the equipment inoperative. Accordingly fill to about 70% of tank capacity (1250 cc), first
removing the cap.
Close the tank plug for transportation
6
Steel Pipe EN 10255 Medium and heavy series
10 mm (electric).
ENGLISH