Enerpac STB-Series Manual do Utilizador descarregar pdf (Página 3)

5.0 PIPE BENDING (see Figure 2 and 3)

IMPORTANT: Before starting a bend, be sure pivot pins

are through the bottom frame plate and locked in

position to properly anchor.

When actuating pump, either hand or electric, operator should

position himself on the cylinder side. It is not recommended that

any bender be operated from the front position.

As bend is generated, watch optic angle gauge until desired

angle of bend is reached. Because of pipe springback, it will be

necessary to go a bit beyond the desired angle.

Figure 2

1. Place pipe in bender frame.

2. Attach Optic Angle Gauge to the top of Pivot Shoe, as shown

in Figure 3. A locator pin on the gauge mates with a hole in

the pivot shoe.

3. Mount other Pivot Shoe. Both pivot shoes are marked for

various pipe sizes. The markings on pivot shoes must

correspond to the pipe size being bent and face the pipe.

4. Angle Gauge should now read at zero when read along line

scribed on bender frame.

5. Lock both Pivot Shoes in position with push-button Pivot

Pins. Pivot pin is operated by pushing down on button with

thumb while grasping cross handle. Be sure pivot pins are

inserted through corresponding marked pipe size holes.

6. Turn Pump Valve as shown for manual valve and proceed to

bend. If electric push-button model, push “advance” button

(STB-202 series benders only).

Figure 3, Pipe Bending

6.0 PIPE REMOVAL

Figure 4, Pipe Ejection

6.1 STB-202 Series Pipe Ejection

1. Retract cylinder plunger slightly by turning pump valve in

opposite direction of outward bending stroke. This will take

pressure off pivot shoes and pins. If electric push-button

model, jog retract button.

2. Remove either one or both of the Pivot Shoes and reposition

one Pivot Pin in proper pipe-size “eject hole” where the pin

will restrain the pipe, not the shoe, as they retract. Four inch

one-shot frames have two eject holes. Use both holes.

3. Now fully retract the cylinder plunger. Bending shoe and pipe

will retract together until pipe meets pivot pin. On contact,

pipe will strip from shoe.

4. Remove other Pivot Pin and Pivot Shoe to remove pipe from

bender.

6.2 STB-101/221 Series Pipe Ejection

1. Retract cylinder completely by turning pump valve in

opposite direction of outward bending stroke before

removing pipe from bending shoe.

2. Remove either one or both pivot shoes.

3. Hammer pipe out of bending shoe.

7.0 INSTRUCTIONS FOR 90° STUB-UP ONE-SHOT

Figure 5

Hydraulic oil to this hose

Angle gauge

mounts to

pivot shoe

Direction of cylinder

plunger travel

Pivot Pin

Pivot Shoe

Angle gauge – zero lines up with

scribed reference line on bender frame

Optic Angle Gauge

Pipe bending holes

Pipe to be bent

Pivot

Shoe

Pivot Bend

Line up center of bend

with arrow on side

Step B – Pipe Bending

Hydraulic oil to this hose

Direction of cylinder

plunger travel

Pipe eject holes

Pivot pin

Pivot shoe

Step C – Pipe Ejection

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