11.4.3 Seal disassembly

11.4.3.1T execution

1.AS 42 and AS 52 only. Push back the ring retainer (31) to remove the circlip (32) from the shaft (4).

2.Remove the rotating seal half by turning the spring clockwise and at the same time pull the spring and the seal over the shaft end. If necessary use a pair of pliers.

3.Loosen the screws (26).

4.Slowly remove the pump casing (1) from the bearing housing (5).

5.Remove the stationary seal part from its seat in the pump casing (1). Pull off the thrower (14).

11.4.3.2V execution

1.AS 42 and AS 52 only. Push back the ring retainer (31) to remove the circlip (32) from the shaft (4).

2.Remove the rotating seal half by turning the spring clockwise and at the same time pull the spring and the seal over the shaft end. If necessary use a pair of pliers.

3.Loosen the screws (26).

4.Slowly remove the pump casing (1) from the bearing housing (5).

5.Loosen the stud bolt (68)

6.Gently pull off the mechanical seal cover (65) from the pump casing (1).

7.Remove the radial seal (66) from the mechanical seal cover (65 )

11.4.3.3Q execution

1.AS 40, 42, 60-65, 80. Loosen and remove the stud bolts (68) AS 50, 52 on the stud bolts (62).

1.Separate the mechanical seal cover (60) from the pump casing (1) by pushing it backwards.

2.Loosen the screws (26).

3.Pull the pump casing (1) gently from the bearing housing (5).

4.Remove the primary stationary seal from the rear of the pump casing (1).

5.Loosen the grub screws on the rotating seal

6.Slide off the rotating seals along the shaft (4).

7.Remove the mechanical seal cover (60) by gently pulling it over the shaft (4).

8.Push out the secondary stationary seal from the mechanical seal cover (60).

9.Remove the O-ring (61).

10.Pull off the thrower (14).

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IM-AS/02.00 GB (0412)

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Johnson Controls AS instruction manual Seal disassembly, Execution

AS specifications

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