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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

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Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Electrical Brothers
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Parts

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Drive Motor
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Tensioning System
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Spence Engineering Company Temperature Pilot T14D

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Maintenance Plans for Spence Engineering Company Temperature Pilot Model T14D

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6 Monthly Temperature Pilot Inspection

Under normal conditions, complete dismantling at regular intervals is not recommended. A valve kept relatively free of dirt will function for years with minimum attention.

Inspect for dirt collected at bleedport 4A

Inspect restriction elbow 5A for dirt collection

Inspect all joints for leakage

Are all bolts tight?

Any persistent leaks?

Sign off on the inspection

Run this procedure

Initial Temperature Pilot Inspection

Under normal conditions, complete dismantling at regular intervals is not recommended. A valve kept relatively free of dirt will function for years with minimum attention.

Inspect for dirt collected at bleedport 4A

Inspect restriction elbow 5A for dirt collection

Inspect all joints for leakage

Ensure all bolts are tight

Is there any persistent leak?

Sign off on the inspection

Run this procedure

Bellows Seal Replacement

Warning: Ensure the machine is turned off and cooled down before starting the procedure.

Steam blowing out around temperature stem at bonnet?

Upload a photo of the steam blowout for record

If steam is blowing out, the bellows seal is defective and must be replaced.

Set screw and bonnet bolts removed?

Cowl assembly and bonnet removed from body?

Bellows assembly removed from bonnet using 5/8 deep socket wrench?

Upload a photo of the new bellows for record

New bellows installed following instructions for replacing seat rings?

Run this procedure

Seat and Disc Replacement

Examine the seat and disc sealing surfaces for nicks or other signs of damage by pipeline debris

If sealing surfaces are damaged, they must be replaced

Remove the seat ring (15) from the body with a socket wrench

Clean the body threads of old sealing compound using a wire brush

Apply new sealing compound (Copaltite or equal) sparingly to the threads and shoulder of the new seat ring

Let stand until tacky before assembling into the pilot body

When seat or disc is replaced, the sealing surfaces must be lapped

Lap sparingly using 500 grit lapping compound and light pressure. Heavy grinding may cause galling, wide sealing surfaces and a grooved disc, all of which tend to produce leakage

After the sealing surfaces are lapped in, disassemble and clean all parts

Run this procedure

Thermostat Replacement

Warning: Do not loosen the bolts on the diaphragm chamber of the Type T14 Temperature Pilot or attempt to dismantle the thermostat element.

Temperature of the thermostat bulbs of original and replacement elements

Temperature diaphragm plate (4) remained seated in correct alignment on balls (5)

All compression on bellows stem assembly (12) released

Pilot is upright

Diaphragm nuts (2) removed and thermostat assembly (11) detached from pilot

Shipping plate detached from replacement thermostat

Cowl assembly (28) did not turn in bonnet (24)

Replacement thermostat installed on pilot and shipping plate installed on original thermostat