GB
Worm gear screw jack SHE type1 and type2
High-performance screw jack HSE type1 and type2
T13.01.000.0000.0003
2019/04 Rev. Index E
Subject to technical modifications
Design changes under reserve
Sous réserve de modifications techniques !
20
9
Maintenance and inspection
Regular (at least 1x per year) inspection/maintenance must be performed by a qualified person (in acc. with
TRBS 1203-1)
*)
7
contracted by the operator.
All tests and modifications must be documented (e.g. machine file, inspection log).
The operator has to count or measure the alternations of load or operating hours and document them.
Risk analysis by the manufacturer of the overall system.
Carry out maintenance/inspection in secure explosive-free atmosphere.
Conduct a technical ATEX safety inspection by an especially qualified person (acc. to TRBS 1203-1) every 3
years.
Power must be turned off before maintenance and inspection of the unit.
Observe to the pertinent safety regulations during maintenance and inspection.
Support the load.
9.1
Maintenance plans
Screw jack
Every 50
hours of
operation**
Prior to
every
operation
Quarterly
Every 300 hours of
operation or
annually
Every 5 years
or after 1,000
hours of
operation
SHE Ba1
C
he
ck
th
e
s
c
re
w
's
g
re
as
e
le
ve
l a
nd
re
fil
l i
f n
ec
es
sa
ry
.
C
he
ck
s
c
re
w
j
a
c
k
e
xt
er
na
lly
fo
r
le
ak
s.
C
he
ck
th
e
g
e
a
r
lu
br
ic
at
io
n
le
ve
l a
nd
r
ef
ill
if
ne
ce
ss
ar
y.
Safety test
Grease the
screw
Check the
gear
lubrication level and
refill if necessary.
Damaged surface
treatment should be
properly repaired
immediately
Grease the
torsional lock
Change the
grease in the
gear box
SHE Ba2
HSE Ba1
Gear box
oil
change
HSE Ba2
** For special operating conditions, the lubrication intervals can be coordinated with us.
9.2
Maintenance instructions
9.2.1 Wear limits
Tr screw
14x4
18x4
18x6
20x4
24x5
26x6.28
30x6
35x8
40x7
Max. wear [mm]
1,0
1,0
1,5
1,0
1,3
1,5
1,5
2
1,6
Tr screw
40x8
50x9
58x12
60x9
60x12
65x12
70x10
70x12
80x10
Max. wear [mm]
2
2,3
3,0
2,3
3,0
3,0
2,5
3,0
2,5
Tr screw
90x16
100x10 100x16 120x14 120x16 140x20 160x20 190x24 220x28
Max. wear [mm]
4,0
2,5
4,0
3,5
4,0
5,0
5,0
6,0
7,0
Wear limits of special pitches upon request or otherwise in operating instructions specific for the order.
7 We recommend having this check performed by the service department of CMCO.
