Horizon Reverse Osmosis Seafari Versatile SFC-1400-2, Owner'S Manual

Page: 110 / 162

HRO
Systems
Horizon
Seafari
“Section K” Maintenance and Repair
Page K - 9
5) Push the plungers onto the rods with a twisting
motion until they are seated completely on the
rods.
6) Place a new washer on the rod and apply a
small amount of Loctite Medium thread locker.
Install the plunger retaining nut and torque to
specification.
f. Manifold Installation:
Tools required: 3/8” drive Ratchet; 5mm
socket; Soft Faced Hammer; Torque Wrench
1) Place the manifold squarely on the plungers
and push with even tension until the manifold
is seated against the crankcase. Do not use any
lubricant.
2) Replace the manifold bolts and washers.
Torque to specification.
Torque sequence for tightening the
manifold:
1 8 6 4
X X X X
X
X X X
3 5 7 2
12. Electric Motor [25]: The Electric Motor requires
front and rear bearing lubrication every 6 months.
Give three pumps of high temperature motor bearing
lubricant into each grease zerc fitting. Use a Polyurea
Base Grease such as Chevron SRI (Polyurea Base) or
Shell Dolium R (Polyurea Base). DO NOT USE
LITHIUM OR SILICONE BASE GREASE.
13.
High Pressure Hose [27]: The High Pressure Hoses
have no adjustment or repairable parts. For removal
and replacement of a High Pressure Hose continue
here.
a. Removal: When removing a High Pressure
Hose use two open end wrenches. Hold the male
flare fitting with one wrench while loosening the
female swivel nut.
b. Replacement: When replacing a High Pressure
Hose use two open end wrenches. Hold the male
flare fitting with one wrench while tightening the
female flare swivel nut clockwise. Snug finger
tight then, with the open-end wrench, tighten 1/4
turn (90
°
) to obtain a metal-on-metal seal. Never
use Teflon tape or pipe sealant on the flare
surface or on the swivel nut threads.
14.
Reverse Osmosis Membrane Element [28 & 29]:
For cleaning of the Reverse Osmosis Membrane
Element refer to Section J of this Manual. For
installation/replacement of the Reverse Osmosis
Membrane Element continue here.
The Membrane Vessel Assemblies have a side port
design. As such, dual membrane systems
(740-2, 1160-2, and 1480-2) require the Membrane
Vessel Assemblies to be removed from their
respective frames prior to servicing. Access
permitting, single R.O. element systems (420-1, 630-
1, and 840-1) may be serviced in place.
Dual Vessel System Preparation:
1.) Disconnect the Brine and Product tube
connections located on the right side of the
Control Manifold. Next, remove the four ¼”
nuts from the right side of the Control Manifold
Assembly that hold it to the Membrane Vessel
Assembly. Slide the assembly from the vessel
and set in a secure place.
CAUTION: Electrical Connections to the High
Pressure Switch [32], the Diversion Valve [43], and
the Salinity Probe [41] remain connected.
2.) Disconnect the High Pressure Hose [27].
3.) Remove the product tubing, black plastic
fittings, and stainless steel nipple from the
Membrane Vessel end plugs. (The vessels
cannot slide out from the Vessel Frames if the
product fittings remain attached)
4.) Next, loosen and remove the two ½”-13 hex
cinch bolts on the Vessel Frame/Wall Mounted
Vessel Frames. (These bolts slightly deflect
these Vessel Frames to clamp the vessel. As
such, the bolts are very snug.)
5.) Slide the Membrane Vessel out from the Vessel
Frames. They may now be serviced.