12
020203.06
Electro-Hydraulic Pumps
• Nylon tube (internal radius 5 mm (0.2”), external radius 10-mm
(0.4”))
After cutting off the
required nylon tubing
section, place the screw
cap and the cutting ring
on the tubing (ensuring
the correct distance
from the end of the tu-
bing) and then insert
the supporting sleeve
into the pipe.
After
hand-tight as-
sembly
of the screw
cap, fasten it fully with a
wrench:
- The right-hand screw coupling
: 4 turns
- The T screw coupling
: 2 turns
- The intermediate coupling
: 3 turns
- The T-piece
: 2 turns
• Nylon tubing (internal radius 8 mm (0.31”), external radius
12-mm (0.47”))
1
After cutting, screw the tube coupling sleeve onto the tubing
(left-handed thread), ending approximately 1.5 mm (0.06”) in
front of the stop.
2
Oil the tube coupling and screw it into the sleeve.
Make sure that the internal sheathing of the tubing does not fol-
low while tightening the screw!
Also make sure that the internal sheathing of the tubing is not
squeezed while tightening the screw.
4
Electrical installation
Check whether the voltage mentioned on the identification plate of
the electromotor matches the on-board voltage.
The battery charging device must be more than adequately power-
ful to compensate the power consumption of the EHP while in moti-
on. For details please see the chapter about ‘Technical Specifications’.
If the EHP is employed without recharging the batteries, the battery
capacity should be calculated on the basis of the power consumpti-
on listed in the ‘Technical Specifications’.
The voltage loss between the battery and the EHP motor must not
exceed 10 % of the supply voltage.
Consult the following wiring table to find the minimum wire diame-
ter and the maximum cable length.
EHP type
Total length of the plus
Wire diameter
and the minus cable
EHPA R2, 12 V
0 - 11 m
0 - 49 ft
1.5 mm
2
AWG 14
11 - 18 m 49 - 78 ft
2.5 mm
2
AWG 12
EHPA R2, 24 V
0 - 23 m
0 - 98 ft
1.0 mm
2
AWG 16
EHPB R2, 12 V
0 - 14 m
0 - 37 ft
2.5 mm
2
AWG 14
14 - 22 m 37 - 60 ft
4 mm
2
AWG 12
EHPB R2, 24 V
0 - 19 m
0 - 83 ft
1.0 mm
2
AWG 16
EHPC R2, 12 V
0 - 11 m
0 - 31 ft
2.5 mm
2
AWG 14
11 - 18 m 31 - 50 ft
4 mm
2
AWG 12
EHPC R2, 24 V
0 - 23 m
0 - 66 ft
1.5 mm
2
AWG 16
Install a main switch as well as a fuse in the + cable of the primary
electric circuit; the fuse value should match the technical specificati-
ons. Install a 2 A fuse in the control circuit.
Connections
Connecting the EHP to a selector switch
In conjunction with the connection of the EHP to a selector switch,
please consult the individual circuit diagrams on page
Connecting the EHP to the autopilot
For details concerning the connection of the EHP to the autopilot,
please see the individual circuit diagrams on page
.
Limit switches
If the EHP is controlled by a selector switch, install limit switches next
to the rudder stops.
If necessary, a control light may be connected to these limit switches.
In the presence of a automatic steering gear, the EHP is frequent-
ly switched off as soon as a certain rudder deflection, measured by
the rudder indicator of the automatic steering gear, is reached. If the
automatic steering gear is not equipped with this device, correspon-
ding limit switches must be installed.
For details concerning the connection and the setup of the limit swit-
ches please see page
.
