alkitronic H Series Manual de operação e manutenção - Página 11

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alkitronic H Series Manual de operação e manutenção

Danger areas

Never place your hand or fingers between the DMA

and support point or under the housing of the H-AX

Torque Wrench. High risks of injuries.

Identification of danger points

alkitronic® H-AX

Reaction

moment

alkitronic® H-AT

Reactionsmoment

4.2.2 Starting procedure hydraulic power unit

Procedures

when first putting the tool into operation

when changing Torque Wrenches at the hydraulic unit

Do not exceed the determined maximum nominal

pressure or torque of the Torque Wrench, square

drive inserts, and other spare parts you are us-

ing, when adjusting the hydraulic pressure or the

torque.

Non-observance may cause damage to property

or personal injury.

Observe the enclosed data sheets/torque tables

of the alkitronic® Hydraulic Torque Wrenches.

H-AX / H-AT

Tightening (rotation CW )

hydraulic torque wrenches

Use High Pressure Quick releasing couplers for

quick connection of Torque Wrench to the hose and

pump. Make sure that the spring-loaded retaining

rings are fully engaged and the safety rings are

tightly threaded against the spring-loaded retain-

ing rings to prevent the connectors from disengag-

ing under pressure.

4.2.3 General description tightening/loosening

The following is a general operation manual. The

operation manual applies exclusively to the hydrau-

lic power unit being used. The operator must read

and understand this operation and maintenance

manual before operation or maintenance.

• Set hydraulic power unit in operation according to the

operation manual.

• Carry out pressure adjustment at the hydraulic power

unit according to torque chart of the alkitronic® Hydraulic

Torque Wrench (see example page 12 above, Fig. 4).

• Activate the torque tool a couple of times before connect-

ing to bolt/nut to ventilate hoses and the tool, if necessary.

Make sure function is faultless.

• Connect the Torque Wrench with the bolt/nut and start the

bolting process. The reaction surface (H-AX hex link) or the

reaction arm (DMA) of the Torque Wrench will move against

the support point and the bolt/nut will begin to turn.

Observe the safety instructions and danger areas,

see item 4.2.1

• Keep pressing the remote control button of the hydraulic

pump until the drive of the alkitronic® H-AT or H-AX stops

turning. The pre-set pressure is reached.

• Then press the button on the remote control once or twice

until the previously set pressure is reached (recommended

to ensure that the applied torque is transferred to the bolt

connection and that the Torque Wrench does not just stop

at the end stop of the hydraulic piston).

• Check the pressure gauge on the hydraulic unit to ensure

that the set pressure has been reached.

Re-positioning the Torque Wrench

to the next bolt connection may not

be possible due to the high torsional

force.

Apply pressure again (possibly 5

bar more than set). Press the release

latch down. Now the ratchet ele-

ment and the Wrench are released.