Maintenance, upkeep – ROHM LHS-L - Air-actuating cylinders User Manual
Page 13
4
R
1
/
4
”
R
275
273
337,7
342
E
--0,01
70
103
103
125
A cm
2
189,7
249,1
288,6
438
Piston area
Size
26/190
38/251
42/289
62/438
Id.-No.
417310
417311
417312
417313
C
26,2
38,2
42
62
9. Maintenance, upkeep
9.1 Maintenance:
The through-hole type actuating cylinder with distri-
butor requires no regular maintenance.
9.2 Upkeep:
Once a year or whenever there is a loss of pres-
sure, remove the cylinder from the spindle and di-
sassemble it. Clean all parts and check them for
wear. It is generally good practice to replace all
sealing elements or at least those subject to dyna-
mic stress. For this reason, 1 set of the sealing ele-
ments identified in the parts list and a supply of
consumable items should be stocked at all times.
To reassembly the cylinder, reverse the disassem-
bly procedure. Make sure that marked parts or
parts requiring a specific position are assembled in
the intended position in order to avoid unbalance or
malfunctions.
Important: Do not damage seals with tools or sharp
edges.
To keep the cylinder damaged, it is good practice to
rebalance it after reassembly. At speeds over 3000
rpm, this precaution is a ”must”. On request, reas-
sembled cylinders will be rebalanced against
charge at the Röhm factory or on the customer’s
premises by one of our fitters with the aid of a
portable balancing machine.
Reassembled cylinders should at least be checked
for vibrations which were not present before the
cylinder was disassembled.
This is all the services which the cylinder requires.
C
HUB D
A
B
D
20
20
32
32
B cm
2
190,9
251,4
291,3
447
Air leakage rate at 6 bar
l/min
45
50
55
60
A
187
215
235
285
F
105
132
145
170
G
6 x M 8
6 x M 10
8 x M 8
8 x M 10
N
5
6
6
6
Eff. draw bar pull
daN
1047
1375
1590
2440
Max. admissible speed
max. min
--1
6500
6500
4000
4000
Volume for full double stroke
l
0,762
1
1,9
2,84
Moment of inertia J
kgm
2
0,03
0,06
0,102
0,24
Weight approx.
kg
11,8
16
25,5
36
max.
20
20
20
20
L
M 32 x 1,25
M 44 x 1,5
M 52 x 1,5
M 70 x 1,5
min.
0
0
-12
-12
K
L
E
--
0,
01
F
A
N
K
R
∅
19
A
B
G
Set of seals, complete
Id.-No.
796681
796682
796683
796684