Safety and operating instructions
© Construction Tools GmbH | 3390 5203 01 | 2019-08-06
Original Instructions
45
7.5 Checking the tensioning bolts
WARNING Rupturing washers become projectiles
Washers can rupture and cause serious injuries, if you
hit the heads of the tensioning bolts or the washers.
u Never check the tensioning bolts by acoustic test, but
by visual test.
The visual check is only an indication. You can only
check doubtless in a repair shop after removing the
adapter plate and the elastic pad.
n
Remove the covers of the service openings which are
placed at the top of the breaker box’s rear side.
n
Check the seat of the paint marks which are placed
on the heads of the tensioning bolts and washers.
The paint marks have to be in your visual field. In other
cases, the respective tensioning bolt can be loose or
broken. In this case act as follows:
n
Dismount the adapter plate and the elastic pad (see
chapter Removing the adapter plate).
n
Check the tensioning bolt for tight fit.
n
Tighten the loose tensioning bolt with the torque re-
quired. (see chapter Bolt connections/Tightening
torques).
n
Strip the old paint mark.
n
Mark new the tighten tensioning bolt, the washer and
the cylinder cover with a colour cast of 10mm width
vertically over all three parts. The paint mark shall be
seen in the centre of the service openings.
n
Have broken tensioning bolts immediately replaced.
n
If you have any questions about replacement of bro-
ken tensioning bolts, consult the Epiroc Customer
Center / Dealer in your area.
You can only check the front tensioning bolts, if you dis-
mount the adapter plate and the elastic pad (see chapter
Removing the adapter plate).
n
Check the tensioning bolts weekly for tight fit.
7.6 Checking the working tool
WARNING Hot working tool
The tip of the working tool gets very hot during opera-
tion. Touching it may lead to burns.
u Never touch the hot working tool.
u If you have to carry out any activities, wait for the
working tool to cool down first.
n
Remove the working tool (see the chapter Disman-
tling the working tool).
n
Check the impact surface of the working tool for chips
and cracks.
n
Check the impact surface of the working tool for de-
formation:
A = new working tool
B, C = worn working tool
n
Replace the working tool if you detect chips, cracks
or deformations (B and C).
n
Check the wear condition of the impact ring if you de-
tect deformations(B). Replace impact ring if neces-
sary.
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