BoWex
®
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40110 EN
17 of 22
16
Please observe protection
note ISO 16016.
Drawn:
2019-07-01 Pz/Wb
Replacing:
KTR-N dated 2017-01-02
Verified:
2019-07-23 Pz
Replaced by:
Equipment category
Inspection intervals
M2
2G
2D
no gases and vapours of
explosion group IIC
The torsional backlash of the coupling (see chapter 9.3 and 9.4) according to
directive 2014/34/EU only has to be inspected if a failure of the coupling and
consequently a standstill of the drive causes explosion hazard.
We recommend a preventive inspection of circumferential backlash and visual
inspection of the sleeve. This should be performed after 3,000 operating hours
for the first time, at the latest 6 months after start-up of the coupling.
If you note insignificant or no wear on the sleeve upon this initial inspection,
further inspections can each be performed after 6,000 operating hours or at the
latest after 18 months, provided that the operating parameters remain the
same.
If you note significant wear during the initial inspection so that it would be
recommendable to replace the sleeve, please find out the cause according to
the table „Breakdowns“, if possible.
The maintenance intervals must be adjusted to the modified operating
parameters without fail.
M2
2G
2D
Gases and vapours of
explosion group IIC
The torsional backlash of the coupling (see chapter 9.3 and 9.4) according to
directive 2014/34/EU only has to be inspected if a failure of the coupling and
consequently a standstill of the drive causes explosion hazard.
We recommend a preventive inspection of circumferential backlash and visual
inspection of the sleeve. This should be performed after 2,000 operating hours
for the first time, at the latest 3 months after start-up of the coupling.
If you note insignificant or no wear on the sleeve upon this initial inspection,
further inspections can each be performed after 4,000 operating hours or at the
latest after 12 months, provided that the operating parameters remain the
same.
If you note significant wear during the initial inspection so that it would be
recommendable to replace the sleeve, please find out the cause according to
the table „Breakdowns“, if possible.
The maintenance intervals must be adjusted to the modified operating
parameters without fail.
BoWex
®
coupling
Illustration 12: BoWex
®
coupling
Here the backlash between the hub and the
nylon spline must be inspected via torsional
backlash, each separately from the driving and
the driven side.
The friction/wear may only be
X
max.
of the
original spline thickness before the nylon
sleeves must be replaced.
When reaching the torsional backlash
S
max.
,
the nylon sleeve must be replaced
immediately, irrespective of the inspection
intervals.
9
Enclosure A
Advice and instructions regarding the use in
potentially explosive atmospheres
9.2 Inspection intervals for couplings in
potentially explosive atmospheres
