Atlas Copco LTV39-2 R56-13 Produktanweisungen Seite 5

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LTV39-2 R56-13

Safety and operating instructions

The tightening torque is adjusted by altering the tension of the clutch spring. Turn the protection ring until

the hole in the clutch housing is free. Then turn the out going spindle until you can see the keyhole in the

adjustment washer. Turn the adjustment key clockwise to decrease and anticlockwise to increase the

torque. After the adjustment, turn the protective ring back again.

Verification of tightening torque

Atlas Copco Torque Analyser, ACTA 3000, plus an appropriately-sized in-line transducer, IRTT together

with the available test joints are recommended equipment.

Operating instructions

See figure in Service instructions

Maintenance

For maximum performance

It is important to lubricate regularly to get maximum performance and trouble-free operation. The motor

should be lubricated with oil; i.e. drops of oil can be dropped either into the compressed air or directly into

the air inlet.

The trigger, planetary gears, needle bearings and ball bearings should be lubricated with grease during

the regular overhaul of the machine.

The angle gear and clutch must be lubricated using grease that contains molybdenum disulphide:

Molykote BR2 Plus, for example, or an equivalent brand.

Use lubricants of good quality. The oils and greases mentioned in the table are examples of lubricants

which are recommended.

Rust protection and internal cleaning

Water in the compressed air, dust and wear particles cause rust and sticking of vanes, valves etc. An air

filter should be installed close to the machine (see 'Air quality').

Reporting, RE – signal

Reporting (RE) machines supply an air signal that can be connected to a monitoring instrument that

counts the number of approved tightening and detects premature shut-off and rehits and other irregulari-

ties.

Service instructions

Overhaul and preventive maintenance is recommended at regular intervals once per year or after maxi-

mum 250.000 tightening depending on which occurs sooner. More frequent overhaul may be needed, if

used at high torque and long tightening times. If the machine not is working properly, it should immediately

be taken away for inspection.

The strainer at the air inlet and the exhaust silencer should be cleaned frequently or replaced in order to

prevent clogging, which decreases the capacity.

At the overhauls, all parts should be cleaned accurately and defective or worn parts (i.e. O-rings, vanes)

should be replaced.

Disassembling / assembling

It is important that the machines threaded connections are tightened properly; i.e. in accordance with the

specifications on the exploded views.

Lubricate o-rings and threaded connections with grease before assembling.