Si-tex SP-70 - Page 8

INSTALLATION INSTRUCTIONS
SI-TEX MARINE REVERSING PUMP
Part Nos. 20810016, 20810031, 20810018 & 20810035
GENERAL:
The reversing pump consists of a hydraulic pump and a motor. The pump is a piston type, driven
by a reversing permanent magnet motor. The pump is designed in such a way that it will keep oil
from returning through the pump when is not running or correcting. There is also a bleed-to tank to
allow the use of unbalanced cylinders. The pump is compatible with all hydraulic steering systems
including pressurized steering systems such as Hynautic.
To adjust flow rate, loosen pump housing screws and turn pump housing. Clockwise will decrease
flow rate, anti-clockwise to increase flow rate.
Part Nos. 20810016(12V) & 20810031(24V) 18CI Pumps
The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustable flow rate that will
deliver from 36 in
3
to 73 in
3
(600 cm
3
– 1200 cm
3
) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is
suitable for rams with displacements ranging from 7 in
3
(115 cm
3
) to 18 in
3
(295 cm
3)
) displacement.
Part No. 20810018(12V) and 20810035(24V) 30CI Pumps
The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustable flow rate that will
deliver from 61 in
3
to 122 in
3
(1000 cm
3
– 2000 cm
3
) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is
suitable for rams with displacements ranging from 15 in
3
(246 cm
3
) to 30 in
3
(495 cm
3
) displacement.
SPILL VALV
E
ADJUSTMENT