Greenlee SITE-RITE 840A Manual de usuario

INSTRUCTION MANUAL

ALUMINUM SITE-RITE®

HAND BENDERS

840A, 841A, 842A, 843A,

840AH, 841AH and 842AH

AND

IRON SITE-RITE®HAND BENDERS

840F, 841F, 842F, 843F,

840FH, 841FH, and 842FH

Read and understand this material

before operating or servicing this

equipment. Failure to understand how to

safely operate this tool could result in an

accident causing serious injury or death.

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SITE-RITE®Hand Benders

Greenlee / A Textron Company

Description

The Greenlee aluminum SITE-RITE®and iron SITE-RITE®benders are

manually powered tools intended to bend 1/2" through 1-1/4" EMT

(electrical metallic tubing) and 1/2" through 1" rigid and IMC conduit.

Purpose

This instruction manual is intended to familiarize operators and

maintenance personnel with the safe operation of the Greenlee

SITE-RITE®Manual Benders. This manual should be kept available to all

operating personnel.

A person who has not read and does not

understand all operating instructions is not

qualiﬁed to operate this tool.

Failure to read and understand safety instructions

may result in injury or property damage.

Inspect the tool for wear or damage. Replace worn, damaged,

or missing components with Greenlee replacement parts.

A worn, damaged, or improperly assembled component may fail,

resulting in injury or property damage.

Use this tool for manufacturer’s intended use only. Use other than

that for which the tool was intended may result in injury.

All speciﬁcations are nominal and may change as design improvements

occur. Greenlee Textron Inc. shall not be liable for damages resulting

from misapplication or misuse of its products.

KEEP THIS MANUAL

Additional copies of this manual are available

upon request at no charge.

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SITE-RITE®Hand Benders

4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070 3

Bending — Handle Up

LINE OF

SIGHT

ARROW

90° 60° 45° 30° 22-1/2° 10°

APPLY FOOT

PRESSURE HERE

FLOOR LINE

45°

1. Mark the conduit.

2. Insert the conduit into the bender so that the arrow is aligned with

the bending mark.

Place one foot on the bender as illustrated. Use heavy foot pressure

on the bending shoe; maintain this pressure throughout the bend.

4. Look down the line of sight as illustrated. Stop bending when the

pin is in line with the appropriate angle mark.

Note: Overbend rigid conduit slightly to compensate for springback.

Bending — Handle Down

10°221/2°30° 45° 60°

90°

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SITE-RITE®Hand Benders

Greenlee / A Textron Company

Bending — Handle Down (cont’d)

1. Mark the conduit.

2. Insert the conduit into the bender so that the arrow is aligned with

the bending mark.

3. Position the bender as shown, with your body as close to the bender

as possible.

4. With the handle angled to prevent slipping, apply constant pressure

against the conduit throughout the bend.

5. Bend until the edge of the conduit is in line with the degree scale as

illustrated.

Note: Overbend rigid conduit slightly to compensate for springback.

Bending Tips:

• Line up all bends in the same plane.

• Bend 1/2" and 3/4" EMT with the handle down.

• Bend 1" and 1-1/4" conduit with the handle up.

• When bending with the handle up, work at a stairwell or loading dock

so that previously made bends hang over the edge.

Marking the Conduit for 90° Stubs

Mark A Mark B

Arrow

DEDUCT

HEIGHT OF STUB

HEIGHT

STUB

1. Measure the length of the required stub.

2. Measure and mark the stub length on the conduit. This is Mark A.

3. See the Deduct length shown on the bender. Subtract the Deduct

length from Mark A and make a new mark. This is Mark B.

4. Align Mark B with the arrow on the bender and bend the conduit

to 90°.

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SITE-RITE®Hand Benders

4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070 5

Correcting Overbends

If a stub-up is accidentally overbent, place the open end of the bender

handle over the conduit and manipulate to desired angle.

Back-to-Back 90° Stubs

FINISH LINE

MARK

1. Make the ﬁrst 90° stub.

2. Fit the bent conduit into its ﬁnal position and mark the Finish Line

on the conduit, as shown. The Finish Line on the conduit is the

bending mark.

3. Align the bending mark with the tip of the star and bend the conduit

to 90°.

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SITE-RITE®Hand Benders

Greenlee / A Textron Company

Offset Bends

An offset is used to re-route the conduit to avoid an obstruction.

An offset consists of two equal opposing bends.

Two factors must be considered when selecting the offset angle. First, a

steeper bend angle will require more pulling force. Second, a shallower

bend angle will require more space.

Greenlee Offset Table

(applies to any size conduit)

Offset Angle Multiplier Shrink Per Inch

of Offset Depth

10° x 10° 6.0 1/16" per inch

22-1/2° x 22-1/2° 2.6 3/16" per inch

30° x 30° 2.0 1/4" per inch

45° x 45° 1.4 3/8" per inch

60° x 60° 1.2 1/2" per inch

Working Past an Obstruction

OBSTRUCTION

14"8"

10" DEPTH

MARK A MARK B

45°

Example 1: Working Past an Obstruction

45° x 45°, 10 inches of offset

1. Determine the center-to-center distance. Use one of these two

methods:

• Find the appropriate multiplier in the Offset Table, Column 2.

(For 45° x 45°, the multiplier is 1.4). Multiply the height of the

obstruction by the multiplier (10" x 1.4 = 14).

•

See the Greenlee Speed Guide for Offsets. In the Offset Depth Inches

column, ﬁnd the row with the appropriate amount of offset. Find

the Center-to-Center column under the appropriate OFFSET ANGLE.

The distance shown at the intersection of the appropriate row and

column is the center-to-center distance. (Under Offset Depth Inches,

see the row labeled “10”. Read to the right to ﬁnd the Center-to-

Center distance under 45° x 45°. The number shown is 14".)

2. Mark the conduit as shown.

3. See the bending instructions.

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SITE-RITE®Hand Benders

4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070 7

Working Toward an Obstruction

When working toward an obstruction, the conduit will appear to “shrink.”

To compensate for shrinkage, use the shrink per inch of offset as

shown in the Offset Table, Column 3 or the Shrink Amount shown in the

Greenlee Speed Guide for Offsets.

Greenlee Speed Guide for Offsets

(applies to any size conduit)

Offset

Depth

Inches

Offset Angle

22-1/2° x 22-1/2°

30° x 30° 45° x 45° 60° x 60°

Center

-to-

Center

Shrink

Amount

Center

-to-

Center

Shrink

Amount

Center

-to-

Center

Shrink

Amount

Center

-to-

Center

Shrink

Amount

2 5-1/4" 3/8"

3 7-3/4" 9/16" 6" 3/4"

4 10-1/2" 3/4" 8" 1"

5 13" 15/16" 10" 1-1/4" 7" 1-7/8"

6 15-1/2" 1-1/8" 12" 1-1/2" 8-1/2" 2-1/4" 7-1/4" 3"

7 18-1/4"

1-5/16"

14" 1-3/4" 9-3/4" 2-5/8" 8-3/8" 3-1/2"

8 20-3/4" 1-1/2" 16" 2" 11-1/4" 3" 9-5/8" 4"

9 23-1/2" 1-3/4" 18" 2-1/4" 12-1/2" 3-3/8"

10-7/8"

4-1/2"

10 26" 1-7/8" 20" 2-1/2" 14" 3-3/4 12" 5"

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SITE-RITE®Hand Benders

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Working Toward an Obstruction (cont’d)

OBSTRUCTION

14"

33-3/4"

45° 10" DEPTH

MARK B MARK A

30"

Example 2: 45° x 45°, Working Toward an Obstruction

10 inches of offset

1. Calculate the shrinkage. See the Offset Table, Column 3. (The

amount of shrink for 45° x 45° offsets is 3/8" per inch of offset

depth. 3/8 x 10 = 3-3/4")

2. Measure the distance to the obstruction. Add the shrinkage to this

distance. (See the illustration. The distance to the obstruction is 30".

30" + 3-3/4" = 33-3/4)

3. Determine the center-to-center distance. Use one of these two

methods:

• Find the appropriate multiplier in the Offset Table, Column 2.

(For 45° x 45°, the multiplier is 1.4). Multiply the height of the

obstruction by the multiplier (10" x 1.4 = 14).

• See the Greenlee Speed Guide for Offsets. In the Offset Depth

Inches column, ﬁnd the row with the appropriate amount of offset.

Find the Center-to-Center column under the appropriate OFFSET

ANGLE. The distance shown at the intersection of the appropriate

row and column is the center-to-center distance. (Under Offset

Depth Inches, see the row labeled “10”. Read to the right to ﬁnd

the Center-to-Center distance under 45° x 45°. The number

shown is 14".)

4. Mark the conduit as shown.

5. See the bending instructions.

3-Bend Saddles

Like an offset, a saddle is used to avoid an obstruction. In this case,

three bends are used. The ﬁrst and last bends are of the same degree;

the center bend is twice the number of degrees of the other two bends.

See the illustrations.

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SITE-RITE®Hand Benders

4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070 9

3-Bend Saddles (cont’d)

Table for 45° Saddles

(applies to any size conduit)

Saddle

Depth

Place center Mark “A”

ahead of actual center by

Place Marks “B” & “C”

each way from center

1" 3/16" 2-1/2"

2" 3/8" 5"

3" 9/16" 7-1/2"

4" 3/4" 10"

5" 15/16" 12-1/2"

6" 1-1/8" 15"

For each

additional

inch add:

3/16" 2-1/2"

A 45°

BENDING SEQUENCE

22-1/2° 22-1/2°

2" DIAMETER

15"

5"5"

18-3/8"15-3/8"

MARK B MARK A MARK C

Example 3: 3-Bend Saddle 45° center bend, 2" obstacle

1. Calculate the shrinkage. See the Greenlee Offset Table, Column 3.

(The amount of shrink for a 22-1/2° bend is 3/16" per inch of

obstacle. 3/16" x 2 = 3/8").

Measure the distance to the center of the obstruction. Mark with this

distance on the conduit – this is point “A”. Add the amount of shrink to

this distance. (Place the mark 15-3/8" from the end of the conduit.)

3. Refer to the Table for 45° Saddles for the locations of Mark B and

Mark C. (Place both marks, Mark B and Mark C, 5 inches from Mark A.)

4. Use the bending sequence as illustrated. Align Mark A with the

notch near the star. Align Marks B and C with the arrow.

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