REPAIR
WARNING Hydraulic system under high
pressure
Carrying out repairs on the pressurised hydraulic
attachment may lead to serious injury. Connections
may come loose unexpectedly, parts may move
suddenly and hydraulic oil may squirt out.
►
Depressurise the hydraulic system before carrying
out repairs to the hydraulic attachment or the
carrier (see chapter
Depressurising the hydraulic
system
).
♦
For technical support contact the Atlas Copco
Customer Center/Dealer in your area.
Sending in the hydraulic
attachment for repairs
NOTICE
Mixed hydraulic oil
Never mix mineral and non-mineral hydraulic oils!
Even small traces of mineral oil mixed in with
non-mineral oil can result in damage to both the
hydraulic attachment and the carrier. Non-mineral
oil loses its biodegradability.
►
Only use one type of hydraulic oil.
♦
Always specify which hydraulic oil has been used
when sending in the hydraulic attachment to have
it repaired.
Welding
♦
Only commission qualified welding specialists to
perform welding; specialists are people who:
●
have been trained to operate MIG welding
equipment according to the national regulations,
●
know all the relevant national/regional safety and
accident prevention regulations and
●
who are familiar with and understand these Safety
and Operating Instructions.
WARNING Hot hydraulic oil squirting out
The hydraulic system is under high pressure. If
hydraulic connections come loose or are
disconnected, hydraulic oil will squirt out under high
pressure. Hydraulic lines may spring a leak or burst.
Hydraulic oil squirting out can lead to serious injury.
►
Depressurise the hydraulic system before carrying
out repairs to the hydraulic attachment or the
carrier (see chapter
Depressurising the hydraulic
system
).
►
Depressurise the hydraulic system according to
the manufacturer's safety and operating
instructions for the carrier.
WARNING Hot parts
The hydraulic cylinder, hoses, pipes and fittings
become very hot during operation. Touching them
may lead to burns.
►
Never touch hot parts.
►
If you have to carry out activities where you have
to touch the parts, wait for them to cool down first.
NOTICE
Environmental damage due to hydraulic
oil
Hydraulic oil is environmentally harmful and must
not penetrate the ground or enter the water table or
water supplies.
►
Collect any hydraulic oil which escapes.
►
Dispose of it in accordance with the applicable
environmental regulations.
Hard facing the cutter jaws
♦
Depressurise the hydraulic system (see chapter
Depressurising the hydraulic system
).
♦
Remove the cutter jaws (see chapter
Changing
cutter jaw pair
).
♦
Remove the tips of teeth (see chapter
Changing
the tip of the tooth
).
♦
Remove the cutter blades (see chapter
Turning
or changing the cutter blades
).
♦
Check which sections of the cutter jaws are to be
hard faced.
NOTICE
Damage due to hard facing with lack of
buffer layer
►
Hard facing directly onto the cutter jaw base
material may cause the cutter jaw to crack.
►
Weld the buffer layer on first before hard facing.
♦
Observe the following welding regulations to
achieve optimum reworking.
55
© 2015 Construction Tools GmbH | No. 3390 5141 01 | 2015-11-16
Original instructions
REPAIR
CC 1700 U, 1700 S
