Baseline-systems BHM Series Hydrometer Manual do Utilizador descarregar pdf (Página 36)

36 • Hydrometers Operation and Maintenance Manual

Maintenance 8” Model, Cont.

DIAPHRAGM SUB-ASSEMBLY DIS-ASSEMBLY

Dis-assembly and Re-assembly

• Remove the sixteen ½” screws (21) from the upper diaphragm ring (22).

• Lift the upper diaphragm ring (22) off of the diaphragm (23).

• Lift the diaphragm (23) off of the lower diaphragm disc (25).

• Place the replacement diaphragm (23) onto the lower diaphragm disc (25).

• Place the upper diaphragm ring (22) over the diaphragm.

• Replace and tighten the ½” screws (21) into the upper diaphragm ring.

Replacement in the Body

Perform the preceding steps in the reverse order to reassemble the diaphragm

assembly.

1. Replace and tighten the four ½” screws (21) and the four

∕8” screws (24)

into the lower diaphragm disc (25).

2. Place the diaphragm assembly over the impeller shaft onto the lower

chamber disc and stem assemblies.

LOWER CHAMBER DISC SUB-ASSEMBLY

Dis-assembly

The following steps are performed following removal of the diaphragm

sub-assembly as described on page 24.

• Remove the six 6 mm screws (33) from the top of the lower chamber disc (27).

• Remove the two lower chamber disc locking rings (26).

• Temporarily replace the diaphragm subassembly onto the lower chamber

disc (27).

• Insert and tighten the four

∕8” screws (24) into the lower diaphragm disc

(innermost ring) on the diaphragm subassembly, temporarily re-attaching

it to the stem.

• Pull upward and lift to remove the diaphragm subassembly, together with

the lower chamber disc and stem subassemblies, from the hydrometer body.

• Remove, once again, the four

∕8” screws (24) and pull the diaphragm

subassembly up from the stem.

• Lift the lower chamber disc (27) off of the stem (41).

• Inspect the two lower chamber o-rings (28) and (29) on outside of the

lower chamber disc (27). Replace as necessary.

• Remove the four ½” screws (21) that fasten the lower chamber ring (35)

to bottom of the lower chamber disc (27) and remove the lower chamber

ring.

• Inspect the lower chamber bearing wiper (32). Replace as necessary.

• Remove the lower chamber bearing (30) from inside the lower chamber

disc (27). Inspect and replace as necessary.

• Inspect the lower chamber bearing o-rings (31 and 34). Replace as

necessary.

Re-assembly

• Replace the lower chamber bearing (30) into the lower chamber disc.

• Replace the lower chamber bearing ring (35) onto the lower chamber

disc.

• Insert and tighten the four ½” screws (21).

• Perform the rest of the above steps in the reverse order.

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 51 52

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