Ampco Pumps Company ZP1+ Series Installation and operating instructions

Ampco ZP1+ Series (Addendum)
•Positive Displacement Pumps
•Installation and Maintenance Manual

Part
1 Rotor Jam nuts
2 Rotor
3 Cover o-ring
4 Sleeve o-ring
5 Sleeve
6 Rotor o-ring
7 Main body o-ring
8 Se ondary CIP o-ring
9 Se ondary CIP front sleeve
10 Wave Spring
11 Se ondary CIP rear sleeve
Figure 1A
1
2
3
65
7
4
8
911
10

3
1
2
45 7
6
Part
1 Rotor Jam nuts
2 Rotor
3 Cover o-ring
4 Sleeve o-ring
5 Sleeve
6 Rotor o-ring
7 Main body o-ring
Figure 2A

8
9 10 11
Part
8 Se ondary CIP o-ring
9 Se ondary CIP front sleeve
10 Wave spring
11 Se ondary CIP rear sleeve
Figure 3A

Rotor in place: the se ondary
CIP o-ring is not engaged
against the se ondary CIP
front sleeve. The rotor
ompresses the wave spring
to push the sleeve ba k.
Rotor removed: the
se ondary CIP o-ring is
engaged against the
se ondary CIP front sleeve –
no leaking will o ur during
Rotor-out CIP. The wave
spring pushes the sleeve’s
larger diameter forward to
seal the pump body. Figure 4A

1. Remove the rotor Jam nuts (Figure 2A, #1), and the rotors (Figure 2A, #2).
2. Remove the sleeves (Figure 2A, #5) from the rotor by turning them until the pin lines up in
the long part of the “T” shaped slot in the rotor and pulling outward.
3. The sleeve o-ring is now exposed (Figure 2A, #4) . Repla ement may not be ne essary every
time, but leaning is suggested.
4. Remove the main body o-ring (Figure 2A, #7). The use of an o-ring pi k is suggested.
5. Hook out the rotor o-rings (Figure 2A, #6). They will be on the shaft toward the ba k of the
rotor’s shoulder. Two o-ring pi ks may be required and repla ement is suggested.
Repla ement
1. Repla e the main body o-rings
2. Pla e new rotor o-rings on the major of the spline about halfway onto the spline. Leave
them there for now.
3. Put the sleeves ba k onto the rotors by pushing down until the sleeve o-rings seat, then
turn either dire tion until the pin engages in the “T” shaped slot.
4. Pla e the rotors on the shaft and push arefully ensuring the rotor o-ring will seat properly.
The rotor itself will push the rotor o-rings until they seat.
5. Tighten the jam nuts.
O-ring Removal

1. Remove the rotor Jam nuts (Figure 2A, #1), and the rotors (Figure 2A, #2). Remove the
body retaining so ket-head ap s rews. Prize the body from the gear ase by hitting the
ferrules in an alternating fashion with a soft hammer.
2. Remove the sleeves (Figure 3A, #9 & 11) from the shafts. Clean the shaft and wave spring to
ensure movement is free and easy.
Rear sleeve maintenan e – This should be performed
as needed to ensure no leaks o ur from the pump
body during CIP without rotors in the body. See figure
4A for prin iples of operation of rear sleeve assembly.