H1000 pilot, Description/installation, Rudder drive options – B&G H1000 Autopilot User Manual

Page 13: Ram drive unit, Hydraulic linear drives, Warning, Caution, Description

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description/installation

h1000 pilot

Page 12

rudder drive options

warning

Accurate performance of the yacht’s steering system is crucial to the safety of you and your crew. B&G
always recommend that an Authorised B&G Dealer performs the installation of autopilot drive units.

caution

In line with B&G’s policy of continuous product improvement, drive units are regularly updated.
Installation data included with your drive unit will replace installation data contained in this manual.
Before undertaking any shipwright work onboard the yacht, it is essential that the installation data in
this manual be verified against your drive unit. If in doubt, consult your authorised B&G Dealer for
technical assistance. B&G cannot accept liability for differences that may occur between the drive unit
and this User Manual.

ram drive unit

description

A hydraulic pump driven from the dc electric supply combines a compact reversible pump and a
hydraulic cylinder assembly for use on boats without hydraulic steering systems. Three sizes of ram
drive units are available giving a wide range of thrust to suit all vessel types and sizes.

hydraulic linear drives

The Type 1 and Type 2 rams combine motor, pump and hydraulic cylinder as one unit, referred to as an
actuator. Type 3 rams are supplied split into a separate motor/pump unit, reservoir and hydraulic
cylinder, connected by 1m (3ft) hoses. The Type 3 motor/pump unit can be mounted on a vertical
bulkhead.

.

Note: Longer hoses for the Type 3 system are available, please contact your dealer.

Ram Drive Type

RAM-T0-12V

RAM-T1-12V

RAM-T2-12V
RAM-T2-24V

RAM-T3-24V

Motor Supply

12V dc

12V dc

12 or 24V dc

24V dc

Solenoid Valve

Supply

12V dc

1.25A (max)

12V dc

1.25A (max)

12 or 24V dc

1.25A (max)

24V dc

0.8A (max)

Peak Thrust

300 kg force

(660 lbs force)

680 kg force

(1496 lbs force)

680 kg force

(1496 lbs force)

1062 kg force

(2342 lbs force)

Peak Current

20A @ 12V

20A @ 12V

25A @ 12 or 24V

17A @ 24V

Maximum

Stroke

203mm

(8")

254mm

(10")

254mm

(10”)

305mm

(12")

Rod Diameter

12mm

(0.472”)

16mm

(0.623”)

16mm

(0.623")

20mm

(0.623")

Tiller Arm for

70

q Rudder

178mm

(7")

214mm

(8.4")

214mm

(8.4")

257mm
(10.16")

Maximum

Torque

545 Nm

(4823.65 lb.ins)

1427 Nm

(12574 lb.ins)

1427 Nm

(12566 lb.ins)

2688 Nm

(23780 lb.ins)

Weight 5.8

kg

(12.7 lbs 6oz)

7 kg

(15 lbs 6oz)

7 kg

(15 lbs 6oz)

10.3 kg

(22lbs 11oz)

Helm to Helm

Time

Extend

Retract

10.1sec

9.9 sec

(200kg force)

15.7 sec
13.4 sec

(200kg force)

11.9 sec
10.2 sec

(200kg force)

14.6 sec
12.6 sec

(200kg force)

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