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Manufacturing / Industrial • Inspections

C1 Turn Maintenance

C1 Turn Maintenance refers to a scheduled preventive maintenance routine performed on the C1 Turn Unit (or Turntable), typically part of a conveyor or automated material handling system. The purpose of this maintenance is to ensure smooth rotation, proper alignment, and reliable performance during directional transfers of products or materials.
PGT - Indy
08/05/2025

C1 Turn Maintenance

C1 Turn Maintenance refers to a scheduled preventive maintenance routine performed on the C1 Turn Unit (or Turntable), typically part of a conveyor or automated material handling system. The purpose of this maintenance is to ensure smooth rotation, proper alignment, and reliable performance during directional transfers of products or materials.

    Shifts Covering Turn

    After Mini-Turns: Ensure the vacuum system is ready to use BEFORE turn (CHECK ALL BARRELS & FILTERS)

    DD DC dp reading (If above 5.0 unit must be shut down)

    Vac DC dp reading (If above 5.0 unit must be shut down)

    4 HOURS BEFORE CAMPAIGN COMPLETION

    Alarms ? (Review campaign history)

    Snag Sheet Items / Review TPM board

    PM's due ? Calibrations due?

    DP Amp Draw (HWP required) and Oil Level Check

    Heater 1 L1 Amp Draw

    Meter name
    Unit

    Heater 1 L2 Amp Draw

    Meter name
    Unit

    Heater 1 L3 Amp Draw

    Meter name
    Unit

    H1 DP Amp Draw Even?

    • Yes
    • No
    • N / A

    H1 DP Oil Level

    CT L1 Amp Draw

    Meter name
    Unit

    CT L2 Amp Draw

    Meter name
    Unit

    CT L3 Amp Draw

    Meter name
    Unit

    CT Amp Draw Even?

    • Yes
    • No
    • N / A

    CT DP Oil Level

    Heater 2 L1 Amp Draw

    Meter name
    Unit

    Heater 2 L2 Amp Draw

    Meter name
    Unit

    Heater 2 L3 Amp Draw

    Meter name
    Unit

    H2 DP Amp Draw Even?

    • Yes
    • No
    • N / A

    H2 DP Oil level

    Vacuum pump oil (Check all levels and cond)

    G1↑

    G1↓

    G2↑

    G2↓

    Scrapers & Bellows ? (Verify condition )

    Ingot drive belts & sensors (inspect)

    TURN ITEMS (clean and inspect, functional test and repair as required) Front Half

    LOTO is required for servicing the load chambers. Please place your lock on the chamber that you are servicing

    • LOTO1.jpg

    Verify cable connections at the feedthrough on the bottom of the load chamber and connections at all 3 servo motors.

    Feeder bearing (spin test / flush / lube)

    Tri-shaft bearings (slide test / flush)

    Water hoses (Inspect for excessive wear)

    Inspect heat Shield on Stinger (ensure it's level)

    Using the rake arm no-go gauge, slide it over both wear bands for the short and long arms to verify that it does not go "on".

    • tool2.jpg
    • rakearmtoo.jpg

    Any special findings after servicing all 4 feeders?

    Offset

    Cond of graphite

    Offset

    Cond of graphite

    G1

    Meter name
    Unit

    G2

    Meter name
    Unit

    If Gun was changed Enter Gun position and serial #

    Back Half of TURN

    LOTO is required for entry into the Coat Tank. Please place your lock on the group box before servicing.

    • LOTO2.jpg

    What time did we get the CT?

    Ingot feed jams last campaign? Heavy pitting? This is important to get right.

    Bore 1 [mm]

    Meter name
    Unit

    Bore 2 [mm]

    Meter name
    Unit

    Upper Crousel & Ingot Feed Bearings

    Lower Carousel & Ingot Feed Bearings

    CT shafts or Shutter Cables (Clean and inspect)

    CT

    H1

    H2

    What time did we give the Coater back?

    Humidity Reading in the Room when closed up.(sensor next to computer)

    Notes / additional items serviced? How much time did that take? Should that work happen under a different WO?

    How long did pump down take? From they time they hit evac to the time it crossed over?

Source: PGT - Indy (Community Member)

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