Epiroc HB Series User Manual

Safety and operating instructions
© Construction Tools GmbH | 3390 5203 01 | 2019-08-06
Original Instructions
47
7.9 Checking the wear bushes
and impact ring
The wear bushes can be checked after removing the
working tool. You can check the diameter using the en-
closed test gauge. The diameter measured must not ex-
ceed the maximum permissible diameter D
max
(measur-
ing point see below).
Type Size information
on test gauge
D
max
HB3100
HB3100DP
Ø165 170mm (6.69in.)
HB3600
HB3600DP
Ø170 175mm (6.89in.)
HB4100
HB4100DP
Ø180 185mm (7.28in.)
HB4700
HB4700DP
Ø190 195mm (7.68in.)
n
Check the inside diameter of the lower and upper
wear bush whenever replacing the working tool, but
at least once every 100operating hours.
n
Clean the area around the impact ring to enable a
visual check.
The lower wear bush can be replaced on site. Consult
the Epiroc Customer Center / Dealer in your area.
n
Remove all remnants of lubricant from the inside of
the lower breaker part before installing new parts.
A
B
C
A. impact ring
B. upper wear bush
C. lower wear bush
The upper wear bush and the impact ring must be re-
placed in a workshop fitted out for this purpose.
n
Replace the lower wear bush when its inside diame-
ter is greater than the maximum permissible diame-
ter.
n
When replacing the lower wear bush check the inside
diameter of the upper wear bush using inside cal-
lipers (partnumber3363094952).
n
Replace the upper wear bush and the impact ring
when the inside diameter is greater than the maxi-
mum permissible diameter.
n
Replace the impact ring if you find chips and cracks.

Epiroc HB Series Specifications

General

Brand	Epiroc
Model	HB Series
Category	Industrial Equipment
Language	English