RIDGID 3801 Instructions D'installation page 2

GB
3801(E), 3802(E), 3811(E), 3812(E), 3813(E), 3814(E)
Operating Instructions
WARNING! Read
and the accompanying safety booklet
carefully before using this equipment. If
you are uncertain about any aspect of using this
tool, contact your RIDGID distributor for more
information.
Failure to understand and follow all instructions
may result in electric shock, fi re, and/or serious
personal injury.
SAVE THESE INSTRUCTIONS!
Assembling
1. a. 1 1/4", 2" and 3" machines.
Place the bending frame with its supports on the fl oor and slip the ring
over the front of the pump cylinder.
Place the U-bracket through the holes in the ring block of the bending
frame. The pump cylinder and pipe bending frame are now fi xed in the
correct position.
1. b. 4" machine.
- Place the base beam on the fl oor.
- Place the lower wing on the base beam.
- Place the bending-pump on the base beam, hook the lower wing
into the pump and secure the pump at the rear with two M10 bolts.
- Place the corner-supports and where applicable the bending-
former that you will be using, on the lower wing.
- Place the upper wing on the corner-supports and hook it into the
pump.
- Insert the fi xing-pins through the wings and the corner-supports.
ASSEMBLING OF THE 4" MACHINE
Upper wing
Corner support
with fi xing pins
Lower wing
2. Mount a bending former according to the diameter of the pipe to be
bent, on the ram top. The corner supports must be placed between, or
on the bending frame. They are fastened by means of the fi xing-pins.
The holes in the frame allow the corner supports to be adjusted to the
desired outside diameters. The holes are marked accordingly. Ensure
that the fi xing pins for corner supports are properly fi tted through both
wings or through the bending frame to prevent damage.
3801(E), 3802(E), 3811(E), 3812(E), 3813(E), 3814(E)
these instructions
4" pump
Base beam
Ridge Tool Company
Bending
1. The fi lling cap is pierced for air release. Whenever the bending
machine is transported this fi lling cap must be tightly closed, but
released a little when in use.
2. Before bending, the pipe should be slightly greased. The pipe is then
slipped between the corner supports and bending former. The relief
spindle must be locked tightly. By moving the handle up and down the
pump is put into operation. The ram moves out and the pipe is bent.
The bending operation should be continued until the desired curve
is reached but not further than the bending former curve. It should
be remembered that the pipe will spring back a little according to the
quality of the pipe. This must be established by experience.
3. As soon as the pipe reaches its required shape, loosen the relief
spindle and the ram withdraws automatically. Disconnect one of the
corner supports and the pipe can be removed. The models equipped
with an open frame have the advantage that the bent tube can
removed easier, especially long pieces of tubes with several bends,
thus saving a lot of time.
4. If a bend has been bent too far this can be corrected by means of
the straightener. The ram must be reversed and the tube turned over
against the corner supports. The straightener is placed on the ram top
and the bend can now be pushed back to its desired shape. On the
1 1/4" bending machine a bend of 90° cannot normally be corrected.
This also applies to the 3" machine for 2 1/2" and 3", for the 4"
machine for 3" and 4" pipes.
5. For 3" and 4" model only.
When bending 2 1/2", 3" and 4" pipes an extension piston should be
applied to the ram when the tube has been bent past 75°. The stroke
of the ram is not enough to bend a 90° bend in one operation.
6. 1 1/4", 2", 3", 4" electro-hydraulic pipe bending machines.
The electro-hydraulic pipe bending machines are equipped with a
single phase 115 V, 220 V, AC or 380 V 3 phase motor. The motor has
a special safety switch. Once the motor is running the movement of
the ram is controlled by means of a relief spindle which can be either
opened or closed. The motor does not have to be switched off. The
machine also features a pressure safety valve. This is factory set so
that heavy wall pipe (steam pipe) can be bent without any problem.
The pressure safety valve is situated in the pump housing and can
only be set by means of a manometer.
Bending of Hairpin Shapes of 180°
For this, additional accessories are required which can be delivered on
request.
Assembling
1. See under assembling bending machine.
2. The bending former (180°) according to the size of the pipe to be
bent, is placed on the ram. Next, the plates (spare frames) with 3 rolls
(diabolos) are adjusted between or in the frame. The fi xing-pins for
corner supports must be put in the holes 1 1/4" through the center
lock; the removable diabolo must be removed and the pipe to be bent
run through. The pipe must now touch the center diabolo with one side
and the 180° bending form with the other side. Bending can now be
started.
Bending
1. See under bending.
2. If the bending is more than 90°, the ram must be reversed, by
releasing the relief spindle. Adjust the removable diabolos and bend
up to 180°. To remove the bent pipe, see Bending.
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