Atlas Copco Pionjar Service manual

Motor Drills

and Breakers

Contents:

Two types of machines_________________________ 4

Correct fuel mixture____________________________ 6

Daily checks __________________________________ 6

Safety first ____________________________________ 8

A tool for every job ____________________________ 10

Cutting and compacting asphalt ________________ 12

Concrete breaking_____________________________ 14

Tie tamping ___________________________________ 15

Drilling________________________________________ 16

Rock splitting _________________________________ 20

Anchoring_____________________________________ 21

Post driving ___________________________________ 22

Fencing_______________________________________ 22

Digging _______________________________________ 23

Accessories___________________________________ 24

More information ______________________________ 26

Atlas Copco motorized drills and

breakers are designed for splitting rocks,

breaking concrete, cutting asphalt, tamping

ballast, digging and other tasks.

This booklet will help you become familiar

with the machines. You´ll find basic tech-

nical information, simple instructions for

their use and an idea of the range of jobs

they are suitable for.

Two types of machine

cover most applications

• Combined drill/breaker, Pionjär and PICO 14.

mechanism, the combined drill/breaker is equipped with

rotation and air flushing mechanism for drilling applica-

tions. The function selector allows you to switch between

drilling and breaking/driving applications.

• Heavy duty breaker, Cobra mk1. Also powered by

a two-stroke engine, the Cobra mk1 has a separate im-

pact mechanism activated by pressing the machine

down. Thus, the engine can be run without engaging the

impactmechanism.Aspowerful as a 27 kg (60 lbs) pneu-

matic breaker, the Cobra mk1 is suitable for very de-

manding breaking and driving jobs.

Correct fuel mixture

Use the correct fuel mixture, basedonfreshfuelandoil.

Pionjär 120/130 ________ 8%_____ (1:12)

Pionjär 140/150 ________ 5%_____ (1:20)

PICO 14 _________________ 4%_____ (1:25)

Cobra mk1 ______________ 2%_____ (1:50)

Cobra 149/248 _________ 5%_____ (1:20)

Too little oil in the mixture will result in insufficient lubri-

cation and increased wear. Too much oil clogs up ex-

haust ports and channels. Exceptionally dirty fuel filters

should be replaced.

Seeinstruction book for detailedinformationon main-

tenance and servicing.

Daily checks

Simple daily maintenance will ensure trouble-free opera-

tion.

Check the spark plug regularly. Dirty or burnt-out

electrodes impair performance. Check the electrode gap.

Electrode gaps:

Pionjär________________________1.5/0.060”

PICO 14______________________0.5/0.020”

Cobra mk1___________________0.5/0.020”

Cobra 149/248______________1.5/0.060”

Clean the air filter and housing daily. A clogged filter

will cause excessive engine wear and carbonization

which clogs up exhaust ports and channels. Never use

themachine without theairfilter.Dustandstone particles

can enter the cylinder.

Check the impact mechanism oil level daily (on the

Cobra mk1). Place the machine in an upright position

and top up as necessary.

Safety first

For your own safety, always wear protective clothing

– glasses, gloves, shoes or boots with steel toecaps, ear

protectors and a hard hat.

For ease of operation use

your thigh as support when

running the machine.

Ear protectors Hard hat

Shoes or

boots with

steel toecaps

Glasses

Gloves

Both the Pionjär and the Cobra mk1 have handle designs

that shield the operator from a large proportion of harm-

ful vibrations and shock recoil.

On the Pionjär shock-absorbent rubber bushings reduce

vibration levels.

The Cobra mk1 incorpo-

rates H.A.P.S, (Hand and

Arm Protection System),

Atlas Copco’s unique anti

vibration design. The leaf

spring construction

virtually eliminates

vibrations.

Avoid running the engine close to flammable material

or in poorly ventilated areas.

Always empty the fuel tank before transportation and

storage.

A tool for every job

Always use the correct tool for the job - it saves time and

effort. Our motorized breakers and drills have tools for a

variety of applications.

Moilpoint Concrete

chisel

Wide chisel Wedge

Digging blade Asphalt cutter

Reinforced

asphalt

cutter Spade

This manual suits for next models

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