8
307-928
5.
Screw the check valve (62*) into the pump’s fluid out-
let, making certain that the arrow on the check valve
points away from the pump. Screw the rigid end of
the adapter (63*) onto the check valve. See Fig. 4.
6.
Install the 3/8 npt nipple (61*) in the heater outlet.
Screw the male end of the 90
swivel (23*) into the
inlet of the fluid filter (32). Screw the female end of
the swivel (23*) onto the nipple (61*) at the heater
outlet, and tighten securely. When properly as-
sembled, the filter’s outlet nipple (22) will face toward
the back of the cart.
7.
Screw the elbow (64*) into the heater’s inlet. Attach
the 1/2” x 3’ (0.9 m) hose (65*) to the elbow. Attach
the other end of the hose to the swivel of the adapter
(63*) at the pump outlet.
Installing Circulating Kit 222-261
WARNING
Before installing the heater, heater mounting kit
and circulating kit, follow the Pressure Relief Pro-
cedure on page 2. Disconnect all hoses from the
pump.
NOTE: Reference numbers marked with a symbol (for
example, 69
), are included in kit 222-261.
Apply 110-110 pipe sealant (included in the kit) to
all male threads, except at swiveling connec-
tions.
1.
Unscrew the suction hose (29) from the pump intake
elbow (4) and set the hose aside. Remove the elbow
(4) from the pump intake and discard. See Fig. 2.
2.
Screw the rigid end of the manifold (69
) onto the
pump intake, and attach the suction hose (29) to the
swivel end of the manifold. See Fig. 4.
3.
Place a washer (73
) and insulator (74
) on each of
the screws (75
). Insert the screws through the
mounting holes on the left side of the pump support
bracket (H), working from the inside. Place another
insulator (74
) on each of the screws on the outside
of the bracket. Use the screws to attach the back
pressure regulator (76
) to the pump support brack-
et.
4.
Screw one of the nipples (22
) into the outlet in the
base of the back pressure regulator (76
), then
screw one of the elbows (44
) onto the nipple so the
male end of the elbow faces forward. Install another
elbow (44
) in the inlet of the back pressure regula-
tor, then install another nipple (22
) in the elbow.
5.
Screw an elbow (44
) into the open port of the pump
fluid intake manifold (69
), so the female end of the
elbow faces left. Install the CIRC end of the three-
way ball valve (70
) in the elbow, so the valve handle
is at the front.
6.
Screw a second elbow (44
) onto the IN branch of
the three-way valve (70
), so the elbow points up-
ward. Connect one end of the hose (72
) to the el-
bow, and the other end to the nipple (22
) at the out-
let of the back pressure regulator.
7.
Connect the drain hose (71
) to the DRAIN end of
the three-way valve (70
).
8.
Connect the fluid return line to the nipple (22
) at the
inlet of the back pressure regulator.
9.
Connect the air and fluid hoses and gun as explained
on page 5.
GROUNDING
WARNING
Before operating the pump, ground the system as
explained under FIRE OR EXPLOSION HAZARD
and Grounding on page 3.
