INTRODUCTION
Capilano Helms and Cylinders are engineered and manufactured for heavy duty 
marine usage, and are suitable for commercial, work boat and pleasure boat 
applications. Capilano Hydraulic Steering has been designed to meet ABS, Lloyds 
and DNV specifications.
For all Pleasure and Work Boat applications 38ft. (11.5m) and smaller with 
some exceptions, please refer to our SeaStar range of Inboard Steering Systems.
Features
• Regular duty aluminum cylinders.
• Heavy duty cylinders.
• Easy installation for single and dual rudder vessels.
• Cylinders supplied with bleeder fittings.
• Two axis articulation.
• Easy autopilot interface.
GUIDE
  
    | MAXIMUM OUTPUT 
    TORQUE | APPROX. VESSEL SIZE 
    (HULL LENGTH UP TO) | HELM PUMP MODEL | STEERING WHEEL 
    TURNS | CYLINDER MODEL REQUIRED | 
  
    | LB.IN. | (Kg M) | Planing | Displacement |  | Min. | Max. | Fixed |  | 
  
    | 6,548 | (75) | 35′ | (11m) | 30′ | (9m) | 1250v | 3.0 | 6 | n/a | BA 150-7TM | 
  
    | 8,795 | (100) | 40′ | (12m) | 38′ | (11.5m) | 1250V | 4.0 | 8 | n/a | BA 175-7TM | 
  
    | 12,134 | (140) | 50′ | (15m) | 45′ | (14m) | 1250v | 5.5 | 11 | n/a | BA 200-7TM | 
  
    | 12,134 | (140) | 50′ | (15m) | 45′ | (14m) | 1275V | 3.5 | 7 | n/a | BA 200-7TM | 
  
    | 14,766 | (170) | 50′ | (15m) | 45′ | (14m) | 1275V | 4.0 | 8 | n/a | 2 x BA 150-7TM | 
  
    | 19,900 | (230) | 55′ | (17m) | 50′ | (15m) | 1275V | 5.5 | 11 | n/a | BA 200-11TM | 
  
    | 19,902 | (230) | 55′ | (17m) | 50′ | (15m) | 1275V | 5.5 | 11 | n/a | 2 x BA 175-7TM | 
  
    | 26,322 | (300) | 60′ | (18m) | 55′ | (17m) | 1275V | 7.5 | 15 | n/a | 2 x BA 200-7TM | 
  
    | 28,890 | (332) | -a- | -a- | -a- | -a- | 1350 | n/a | n/a | 5.5 | BA 175-11TM | 
  
    | 39,162 | (450) | -a- | -a- | -a- | -a- | 1350 | n/a | n/a | 7.5 | BA 200-11TM | 
a) Consult Manufacturer for hull 
lengths.
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CYLINDER INSTALLATION
Proper cylinder installation is the key to the successful operation of the 
hydraulic steering system. An incorrectly installed cylinder is subject to rapid 
seal and bearing wear and non-repairable damage.

An imaginary line drawn through the tiller arm hole at both hard over 
positions will create the cylinder centre line. With tiller arm at hard over 
positions, angle X and Y should be the same. Select the diagram and dimensional 
data that corresponds with your cylinder model.
Notice
Not all possible cylinder mounting 
configurations are shown, however, all necessary dimensions are shown regardless 
of mounting configurations.
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CAPILANO HELM PUMPS
1250V, 1275V & 1350
A unique variable displacement feature on the 1250V and 1275V helms allows 
the helms-person to adjust the amount of steering wheel turns to their 
preference within a predetermined range. The 1350 helm is a fixed displacement 
pump.
1250V & 1275V Helm Pumps

1350 Helm Pump

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TUBING, HOSES and FITTING KITS
The use of seamless soft annealed refrigeration copper tubing, type L is 
recommended. If flexible hose is required, use hose that has a minimum operating 
pressure of 1000PSI, a burst pressure of 5000PSI and the lowest available 
expansion factor. The 1250V requires the use of 1/2″ OD copper tube while the 
1275V requires the use of 5/8″ OD copper tube. The 1350 Helm Pump requires the 
use of 3/4″ OD copper tube.
Cylinder Hoses
Steering systems installed with copper 
tubing require short pieces of flexible hose to accommodate slight cylinder 
movement. Hoses are supplied with 1/2″ swivel flare nuts on each end. Hoses are 
sold as a pair for single cylinder applications and separately for the variables 
of twin cylinder installations.
  
    | PART NO. | DESCRIPTION | 
  
    | The following hoses are for single cylinder applications. | 
  
    | Cylinder Hose Kit, inc. two hoses 18″ (0.45m) long | HA5731 | 
  
    | The following hoses are for twin cylinder applications, 
    select four hoses as required. | 
  
    | Cylinder Hose, (one) 2′ (0.6m) long, 1250V & 1275V | HA5732 | 
  
    | Cylinder Hose, (one) 3′ (0.9m) long, 1250V & 1275V | HA5733 | 
  
    | Cylinder Hose, (one) 4′ (1.2m) long, 1250V & 1275V | HA5734 | 
  
    | Cylinder Hose, (one) 5′ (1.5m) long, 1250V & 1275V | HA5735 | 
  
    | Cylinder Hose, (one) 6′ (1.8m) long, 1250V & 1275V | HA5736 | 
  
    | Cylinder Hose & Manifold, (Four) 2′ (0.6m) long, 1350V | HA0733 | 
  
    | Cylinder Hose & Manifold, (Two) 2’8″ (0.8m) and (Two) 3’7″ (1.07m) long, 
    1350V | HA0734 | 
Fitting Kits
Single steering station and 
additional steering station S.A.E. flare tube fitting kits are available for use 
with 1/2″ O.D. and 5/8″ O.D. copper tubing.
  
    | DESCRIPTION | PART NO. | 
  
    | Fitting Kit, single station, 1/2″ copper tube | HF5590 | 
  
    | Fitting Kit, additional station, 1/2″ copper tube | HF5591 | 
  
    | Fitting Kit, single station, 5/8″ copper tube | HF5592 | 
  
    | Fitting Kit, additional station, 5/8″ copper tube | HF5593 | 
Fill and Vent Plug Kit
This kit will facilitate filling and 
purging of the steering system at a more convenient and accessible area than the 
helm pump. A through dash fitting, complete with a waterproof vent plug, 18″ 
(0.45m) long vinyl tube and elbow fittings are supplied with this kit

  
    | PART NO. | DESCRIPTION | 
  
    | HA5450 | Fill and Vent Plug Kit | 
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TECHNICAL INFORMATION
  
    | HELM PUMP | 1250v | 1275v | 1350 | 
  
    | Displacement | 1.7cu.in. – 3.4 cu.in. (27.8 cc – 55.7cc) | 2.7cu.in. – 5.4 cu.in. (44.2 cc – 88.4cc) | 8 cu.in. (131 cc) | 
  
    | Relief Valve | 1000 PSI – (70 Bar) | 1000 PSI – (70 Bar) | 1000 PSI – (70 Bar) | 
  
    | Ports | 3/8″ NPT | 3/8″ NPT | 1/2″ NPT | 
 
  
    | STEERING WHEEL SIZE | 1250v | 1275v | 1350 | 
  
    | Minimum Diameter | 20″ (500mm) | 26″ (660mm) | 30″ (760mm) | 
  
    | Maximum Diameter | 36″ (941mm) | 36″ (941mm) | 48″ (1220mm) | 
 
  
    | HELM PUMP SHAFT | 1250v / 1275v | 1350 | 
  
    |  | 3/4″ Standard Taper 1″ per ft. 5/8″ NF threads 3/16″ Key | 1-1/4″ (317mm) dia. Straight 3/16″ Key | 
 
  
    | CYLINDER MODEL 
    SPECIFICATION | 
  
    | CYLINDER MODEL | STROKE | VOLUME | TORQUE @ 1000psi 70 bar @ 35 
    Degrees | 
  
    | BA 150-7 models | 7″–178 mm | 10.2 cu.in. (167cc) | 7117 in/lbs (81 Kg) | 
  
    | BA 175-7 models | 7″–178 mm | 13.7 cu.in. (225cc) | 9569 in/lbs (110 Kg) | 
  
    | BA 200-7 models | 7″–178 mm | 18.9 cu.in. (310cc) | 13200 in/lbs (151 Kg) | 
  
    | BA 200-11 models | 11″–279 mm | 29.7 cu.in. (486cc) | 19900 in/lbs (228 Kg) | 
  
    | 2x 150-7 models | 7″–178 mm | 23.0 cu.in. (377cc) | 15800 in/lbs (181 Kg) | 
  
    | 2x 175-7 models | 7″–178 mm | 31.0 cu.in. (508cc) | 21400 in/lbs (245 Kg) | 
  
    | 2x 200-7 models | 7″–178 mm | 41.0 cu.in. (672cc) | 28700 in/lbs (329 Kg) |