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308443 9
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
The pump is shipped with the fluid inlet (R) and outlet
(S) ports facing the same direction. See Fig. 4. To
change the orientation of the inlet and/or outlet port:
1. Remove the screws (106 or 112) holding the inlet
(102) and/or outlet (103) manifold to the covers
(101).
2. Reverse the manifold and reattach. Install the
screws (106 or 112). Torque the manifold screws
to 80 to 90 in-lb (9 to 10 N-m). See Fig. 4. See
Torque Sequence, page 30.
Fig. 4
1
KEY
N 1/2 npt(f) air inlet port
P Muffler; air exhaust port
is 3/4 npt(f)
R 1” fluid inlet port
S 1” fluid outlet port
101 Covers
102 Fluid inlet manifold
103 Fluid outlet manifold
106 Manifold screws
112 Manifold screws
N
P
R
S
1
Acetal Model Shown
103
102
101
112
106
Torque to 80 to 90 in-lb (9 to 10 N-m).
See Torque Sequence, page 30.
1
04155B
Fluid Pressure Relief Valve
Some systems may require installation of a pres-
sure relief valve at the pump outlet to prevent
overpressurization and rupture of the pump or
hose. See Fig. 5.
Thermal expansion of fluid in the outlet line can
cause overpressurization. This can occur when
using long fluid lines exposed to sunlight or ambi-
ent heat, or when pumping from a cool to a warm
area (for example, from an underground tank).
Overpressurization can also occur if the Husky
pump is being used to feed fluid to a piston pump,
and the intake valve of the piston pump does not
close, causing fluid to back up in the outlet line.
CAUTION
04228B
Fig. 5
1
2
Connect fluid inlet line here.
KEY
R 1” fluid inlet port
S 1” fluid outlet port
V Pressure relief valve
Part No. 112119 (stainless steel)
R
S
Connect fluid outlet line here.
1
2
3
Install valve between fluid inlet and outlet ports.
V
3