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Hynautic Helms: Hynautic Helm Pumps

SEASTAR and BAYSTAR Hydraulic Steering Systems
6-9
4-5/8" (117.5mm)
3-1/2"
(89mm)
6-1/8" (156mm)
1/4" SQUARE KEY
1" (25mm ) DIA.
3/4-10 NC
7-1/2" (190.5mm)
5-3/4" (146mm)
3-1/2"
(89mm)
3-13/16"
(97mm)
3-1/2"
(89mm)
1-3/4"
(44mm)
1/4" SQUARE KEY
1-1/4" (32mm) DIA.
3/4-10 UNC
1" (25mm) DIA.
Heavy Duty Helm Pump
H-20 Series
HELMS
SHAFT STYLE INTEGRAL
HELM DISPL DIA. & TYPE KEYWAY VALVING
20 Series H-21 2.75cu in 1 Straight 1/4" Square Yes
H-25 2.75cu in 3/4", 1"/ft Tapered #9 Woodruff Yes
H-26 2.00cu in 3/4", 1"/ft Tapered #9 Woodruff Yes
Heavy Duty Helm Pump
H-40 Series
SHAFT STYLE INTEGRAL
HELM DISPL DIA. & TYPE KEYWAY VALVING
40 Series H-41 5.50cu in 1 Straight 1/4" Square Yes
H-41-2 5.50cu in 3/4", 1"/ft Tapered #9 Woodruff Yes
H-42 4.00cu in 1 Straight 1/4" Square Yes
H-42-02 4.00cu in 3/4", 1"/ft Tapered #9 Woodruff Yes
Hynautic Helm Pumps
NOTICE
NOTICE
Hynautic H-20/40 Series helms require the use of an external Pressure
relief valve (Part # MSV-21) and an external oil reservoir (part #HP5810).
Max steering wheel diameter 36" (914 mm).
Max steering wheel diameter 47" (1193 mm).
HF-07 trim plate sold separately.
NOTICE
HF-07 trim plate sold separately.