B60-2C30-JEE datasheet(13/24 Pages) MAGNETROL

13 / 24 page

46-605 Flanged External Cage Float Actuated Liquid Level Switches

11. Check float to be certain it is buoyant in the liquid (float

chamber or vessel must have adequate liquid level). If float

is determined to be filled with liquid, or it is collapsed, it

must be replaced immediately.

Caution: Do not attempt to repair a float. See Replacement of

Standard Float and Stem Assembly, Section 2.5.

If all components in the control are in operating condition,

the trouble is likely located external to the control. Repeat

inspection of external conditions as previously described.

NOTE: If difficulties are encountered which cannot be identified,

consult the factory or your local representative for assistance.

A complete description of the trouble should be provided

along with information concerning your piping and mounting

arrangement, plus a description of your operating sequence.

Sketches or photographs showing the installation are also

beneficial.

When inquiring about your control, be certain to always

specify the complete Model and Serial numbers.

4.0

Preventive Maintenance

Periodic inspections are necessary to keep your level

control in good working order. This control is a safety

device to protect the valuable equipment it serves. A

systematic program of “preventive maintenance” must be

implemented when the control is placed into service. If

the following sections on “what to do” and “what to avoid”

are observed, your control will provide reliable protection

of your equipment for many years.

4.1

What To Do

4.1.1 Keep control clean

Be sure the switch housing cover is always in place on the

control. This cover is designed to keep dust and dirt from

interfering with switch mechanism operation. It also pro-

tects against damaging moisture and acts as a safety feature

by keeping bare wires and terminals from being exposed.

Should the housing cover or any seals become damaged or

misplaced, obtain a replacement immediately.

4.1.2

Inspect switch mechanisms, terminals, and

connections monthly

1. Dry contact switches should be inspected for excessive

wear on actuating lever or misalignment of adjustment

screw at point of contact between screw and lever.

0.03"

Minimum

gapsetting

Topjam

nuts

Bottomjam

nuts

Attraction

sleeve

Enclosingtube

(ref.)

Stoptube

Sleeve

stopstrap

Retaining

screws

Floatandstem

assembly

Head

flange

(ref.)

Figure 10

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