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    Assembling Procedures for TCG Ring

    Assembling Procedures for TCG Ring

    １.Ring Cleaning

    Remove dust and dirt settled on reference surface, inner surface of Cam Rings and basal spigot joint.

     

     

    ringhukiori

    ２.Ring temporary installation
    Tighten fastening bolts provisionally so that Rings can move slightly.

     

    7.リング-ボルト締め

    ３. Ring runout check
    Check the runout value of tooth tip when it rotated.
    Refer to the recommended installation accuracy table

     

     

    ringkeisoku-1
    ringprecision1
    ringprecision2

    ４.Ring fixing
    Slowly and evenly tighten Ring-fastening bolts along a diagonal direction with around 30% of recommended torque, and gradually increase the torque to tighten the fastening bolts.

     

     

    7.リング-ボルト締め
    bolttorque3
    bolttorque4

    ５.Ring runout check
    Check the runout of tooth tip of Ring again.
    Assembly is complete if it is within the recommended installation accuracy value.

     

     

    ringkeisoku

     For adding multiple Circular arc Rings (except for adding in full circumference) 

    Use special adding jig "RJ" or "UJ" when splicing circular arc ring.

     

    jig

    1. Installation of the First Circular arc Ring
    Mount first circular arc ring while adjusting first Circular arc Ring according to mounting instructions.

    2. Installation of the Second Circular arc Ring
    Temporarily tighten the mounting bolts so that the Circular arc Ring can still move slightly.

    3. Connecting the Circular arc Rings
    Set adding jig on first and second circular arc rings
    Tighten two jig-fastening bolts through plastic washer.
    There after tighten setscrews at two locations. 
    Start to tighten setscrews from first circular arc ring side.

     

    bolttorque5

    4. Checking Tooth Tip Runout
    Adjust with checking the runout of tooth tip from First Circular arc Ring to Second circular arc ring. 

     

     

    5. Temporary Tightening of Mounting Bolts
    Tighten fastening bolt for second  Circular arc Ring with around 30% of the recommended torque  
    Refer to the recommended torque table above.

     

     

     

    6. Removing the Connection Jig
    Remove adding jig (Loosen setscrews before removing jig-fastening bolts). 

     

     

    7. Checking for Play at the connection part
    Press the Connection jig by hand against the Circular arc Rings connection part and make sure there is no looseness or play in the connection jig. If there is play in the jig, the pitch of the connection part is incorrect. Please start over from step 3.

     

     

     

    8. Fixing the Circular arc Ring
    Assemble the third and subsequent Circular arc Rings in the same manner.
    After completing all adjustments, tighten the segmented ring mounting bolts to the recommended torque.

    Be sure to use the circular arc ring with angle K2 at the end position.
    Since the K2 ring has only one connection mounting tap, it is designed to be connected only to the CW side of the K1 ring.

     

    For adding Circular arc Rings in full circumference.　(Using connection jigs equal to the number of Circular arc Rings)

    1. Installation and temporary fastening of the  Circular arc Rings 

    Mount first circular arc ring and adjust with checking the runout of tooth tip value. Finished adjustment, tighten fastening bolt with around 30% of recommended torque.
    Temporarily tighten the other Circular arc Rings so that they can still move slightly.

     

     

     

    2. Connecting the Circular arc Rings
    Mount adding connection jigs in the order of the second and third Circular arc Rings.
    Connection jigs are required in the same quantity as the number of Circular arc Rings.

     

     

     

    3. Checking Tooth Tip Runout
    Start by checking the runout of tooth tip from the first circular arc ring sequentially and adjust as necessary. 
    After that, other rings tighten the fastening bolts sequentially to approximately 30% of the recommended torque as well.
    Check the runout of tooth tip around the entire circumference of the mounted circular arc rings, and repeat steps 1 to 3 until it is under the recommended mounting precisions.

     

     

    4. Fixing the Circular arc Rings
    After all adjustments are completed, tighten the Circular arc Rings mounting bolts to the recommended torque.

     

     

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