RIDGID 300 Manuel D'instructions page 2

300 and 400 Lever Bender Instruction Sheet
b. For 45° Bends: Align the mark with the 45° line on the form.
X
45 Line
Mark On
Tube
Before
Figure 5 – Aligning for 45° Bend
Double 45° Offset Bend:
1. Mark the tube at the desired distance (X) for the first 45° bend.
2. Multiply the offset dimension (Y) by 1.414 to get the centerline
dimension between the legs of the bend. Adjust the distance as
per bend adjustment chart.
Offset Leg Length = (1.414 * Y) – Bend Adjustment
1.414 Y
X
Reference Mark
A – Unbent Tube with Markings
Reference Mark
X
B – Bent Tube with Markings
Figure 6 – Double 45° Offset Bend
3. Follow procedure for first 45° Bend.
4. Reposition the tube in bender for second 45° bend and make
the second bend.
Adjustment (Gain) Calculations
When determining tube bend locations, adjustment factors must be
considered to achieve proper layout. Adjustment (Gain) is the differ-
ence in the length of tubing used in a radiused bend compared to
the length of tubing required in a sharp bend, when measured from
one end to another.
The distance around a radiused bend is always less than a sharp
bend. The adjustment factor is determined by the radius of the tube
bender and the number of degrees of the bend. See the following
chart for ad justment factors. Adjustment factors are subtracted from
the center line distances (see the example).
2
X
After
Bend Adj.
45° Bend Mark
Y
Bend Adjustment Chart
Model Tube
No. (O.D.)
310/316M* / " / 16 mm 2
5
8
312 / "
3
4
310M 10 mm
312M 12 mm
314M 14 mm
315M 15 mm
318M 18 mm
403 / "
3
16
404 / "
1
4
405/408M* / " / 8 mm
5 15
16
406 / "
3
8
408 / "
1
2
406M 6 mm
410M 10 mm
412M 12 mm
* This product is dual purpose, being both inch and metric.
NOTE! Bend Adjustment (Gain) factors are calculated theoretical
values. Different types of tubing materials and wall thick-
nesses may require more or less adjustment.
EXAMPLE: FOR MODEL 403
TUBE SIZE / "
3
8
BEND RADIUS / "
3
8
Adjustment for 90° bend =
Adjustment for 45° bend =
(Values Found In Adjustment Chart)
ACTUAL TUBE = Sum of Centerline Dimensions - Adjustments for Bends
LENGTH REQUIRED = 2.00 + 3.00 + 1.50 + 1.00 -
= 7 / " (~7.2")
3
16
3.00
.25
2.00
Reference Mark
90° Bend Mark
A – Unbent Tube with Markings
Reference Mark
2.00
3.00
B – Bent Tube with Markings
Figure 7 – Gain Value Calculation Example
Utilisation des cintreuses à levier
FR
types 300 et 400
AVERTISSEMENT
Afin de limiter les risques de grave bles-
sure corporelle, et avant d'utiliser ces
outils, familiarisez-vous avec les con-
signes ci-présentes, ainsi qu'avec les
instructions et avertissements visant l'ensemble du matériel
présent.
• Portez systématiquement des lunettes de sécurité afin de
limiter les risques de blessure oculaire.
• Ne jamais utiliser de rallonges de levier tels que des
morceaux de tuyau. De telles rallonges pourraient s'échap-
per et augmenter les risques de grave blessure corporelle.
Bend Bend
Radius 45° 90°
/ " / 56 mm / " / 2.4 mm / " / 24 mm
1 3 15
4 32 16
2 / " / " 1
7 1
8 8
42 mm 2 mm 18 mm
42 mm 2 mm 18 mm
56 mm 2.5 mm 24 mm
56 mm 2.5 mm 24 mm
72 mm 3 mm 31 mm
/ " / "
5 1 1
8 32
/ " / "
5 1 1
8 32
/ " / 24 mm / " / 1 mm / " / 10 mm
1 13
16 32 32
/ " / "
15 1 13
16 32
1 / " / "
1 1 5
2 16
16 mm 0.5 mm 6.5 mm
24 mm 1 mm 10.5 mm
38 mm 1.5 mm 16.5 mm
/ " (x 1)
1
4
/ " (x 2)
1
32
/ " (.25)- / " (.03)- /
1 1 1
4 32 32
.03 .03
1.50
45° Bend Mark
1.00
45°
890-011-232.09_REV. B
/ "
1
4
/ "
4
/ "
4
/ "
32
/ "
8
" (.03)=
1.00