Repair; Pressure Relief Procedure; Check Valve Repair - Graco SaniForce 2150 Operation Manual

Repair

Repair Repair
Pressure Relief Relief Procedure Procedure
Pressure Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as splashing
in the eyes or on skin, follow the Pressure Relief
Procedure when you stop pumping and before you
clean, check, or service the equipment.
1. Remove power from the system.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid
pressure. Have a container ready to catch the
drainage.
4. Back out regulator knob to bleed any internal
air pressure.
Check Check Check Valve Valve Repair Valve Repair Repair
Tools Required Tools Tools Required Required
• O-ring pick
NOTE: Kits are available for new check valve balls
NOTE: NOTE:
and seats in a range of materials. O-ring kits also
are available.
NOTE: NOTE: To ensure proper seating of the check balls, NOTE:
always replace the seats when replacing the balls.
Also, replace the o-rings every time the manifold is
removed.
3A5133J
Disassemble the Disassemble Disassemble the Ball the Ball Check Ball
1. Follow the Pressure Relief Procedure, page
Remove power from the motor. Disconnect all
hoses.
2. Remove the clamps (31) holding the outlet
manifold (3) to the fluid covers (2), then remove
the outlet manifold.
3. Remove the ball check valve assemblies:
a. On the 2150T, remove the seats (6), balls
(7), and o-rings (8).
b. On the 2150HS, remove the ball stops (28),
balls (7), and gaskets (8a).
4. Repeat for the inlet manifold.
To continue disassembly, see
Disassemble the Standard Diaphragms, page
Reassemble Reassemble the Reassemble the the Ball Ball Check Ball
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
2. Reassemble in the reverse order, following all
notes in the illustration. Put the inlet manifold on
first. Be sure the ball checks and manifolds are
assembled exactly exactly as shown. If present on the exactly
fluid covers (2), the arrows (A) must
the outlet manifold (3). For fluid covers without
arrows, the tallest opening in the fluid cover must
be attached to the outlet manifold.
Repair
Check Valve Check Valve Valve
11.
14.
Check Valve Check Valve Valve
must point toward
must
must
must
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