Harken HCI025110345BCC Integral Backstay Adjuster User Manual
Page 6

6
Relief Valve Settings
The Integral Hydraulic Cylinder relief valve is preset at
our factory to limit the tension to the maximum load of
the recommended cable of the rigging for which it is
used. Each cylinder is set to provide a specific
maximum pull force.
Operation
Reading Cylinder Gauge
The easy-to-read analog gauge
displays oil pressure in thousands
of pounds per square inch. Refer
to the table below to convert oil
pressure to pull force.
FACTORY-SET MAXIMUM PULL FORCE BY CYLINDER
Type
Cylinder Part No.
Maximum Pull Force
lb
kg
-6
HCI025110345
3500
1590
-10
HCI035130345
5000
2270
-12
HCI040160385
6500
2950
-17
HCI045160385
8700
3950
IMPORTANT: If release is set beyond max factory set
pressure relief, warranty may be voided.
Notice: Gauge needle may go beyond specified relief setting
during pump action then return to the maximum specified
relief setting. This is normal and is part of the cylinder design.
Cylinder tension can be increased by adjusting the pressure
relief setting. Contact your Harken Service Representative
for assistance.
Part
No.
- Size
Max wire
Ø
Stroke
Pin center
length
(closed)*
Weight**
Gap/pin
Ø
Pull force***
Breaking
load
@ 1000 psi
69 bar
@ 2000 psi
138 bar
@ 3000 psi
207 bar
@ 4000 psi
276 bar
@ 5000 psi
345 bar
in
mm
in
mm
in
mm
lb
kg
in
mm
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
HCI025110345BCC
-6
7
/
32
5.5
13.6 345 29.8 758
7.3
3.32
7
/
16
11.1 1236
561
2473 1122 3500 1587
—
—
—
—
7000 3175
HCI035130345BCC
-10
9
/
32
7
13.6 345 29.8 758
7.3
3.32
1
/
2
12.7 1236
561
2473 1122 3709 1682 4946 2243 6182 2804 12364 5608
HCI040160385BCC
-12
5
/
16
8
15.2 385 32.8 834 10.8 4.92
5
/
8
15.9 2098
952
4197 1904 6295 2855 8394 3807 10492 4759 20984 9518
HCI045160385BCC
-17
3
/
8
9.5
15.2 385 32.8 834 10.8 4.92
5
/
8
15.9 2098
952
4197 1904 6295 2855 8394 3807 10492 4759 20984 9518
*For pin center length open add stroke length to pin center length closed. **Rod ends (forks) included in weights. *** Max relief setting is 5,000 psi/345 bar.