Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 11 views

    04 - 05-3657707e - Bottom Roller.

    Uploaded by

    Enso Rosales
    The bottom roller document discusses: 1) Bottom rollers have long-term lubrication and are sealed with duo-cone seals. Dirt entering through the labyrinth is a common cause of leaks. 2) The bottom roller components include a roller body, supports, bushings, disks, seals, plugs, bolts, washers, and grease. 3) Installation of the bottom roller involves removing securing devices, installing seals and plugs if connected to a greasing system, positioning under the frame, tightening bolts, and filling with grease.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    04 - 05-3657707e - Bottom Roller.

    Uploaded by

    Enso Rosales
    11 views6 pages
    The bottom roller document discusses: 1) Bottom rollers have long-term lubrication and are sealed with duo-cone seals. Dirt entering through the labyrinth is a common cause of leaks. 2) The bottom roller components include a roller body, supports, bushings, disks, seals, plugs, bolts, washers, and grease. 3) Installation of the bottom roller involves removing securing devices, installing seals and plugs if connected to a greasing system, positioning under the frame, tightening bolts, and filling with grease.

    Original Title

    04_05-3657707e - Bottom Roller.

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The bottom roller document discusses: 1) Bottom rollers have long-term lubrication and are sealed with duo-cone seals. Dirt entering through the labyrinth is a common cause of leaks. 2) The bottom roller components include a roller body, supports, bushings, disks, seals, plugs, bolts, washers, and grease. 3) Installation of the bottom roller involves removing securing devices, installing seals and plugs if connected to a greasing system, positioning under the frame, tightening bolts, and filling with grease.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    11 views6 pages

    04 - 05-3657707e - Bottom Roller.

    Uploaded by

    Enso Rosales
    The bottom roller document discusses: 1) Bottom rollers have long-term lubrication and are sealed with duo-cone seals. Dirt entering through the labyrinth is a common cause of leaks. 2) The bottom roller components include a roller body, supports, bushings, disks, seals, plugs, bolts, washers, and grease. 3) Installation of the bottom roller involves removing securing devices, installing seals and plugs if connected to a greasing system, positioning under the frame, tightening bolts, and filling with grease.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    You are on page 1of 6

    4.

    5 BOTTOM ROLLER

    4.5 Bottom roller


    4.5.1 General
     Bottom rollers have long term lubrication. If  The roller can be made fully operational by
    installed the rollers are connected to the un- removing and cleaning it, and then filling it with
    dercarriage central greasing system. fresh oil.

     The rollers are sealed with duo-cone seals (6).  Loose fastening bolts will immediately result in
    Function and assembly of duo-cone seals - leaks and further damage to the bottom rollers.
    see chapter 4.11.

     The majority of roller leaks is due to dirt that


    enters through the labyrinth (see detail Y, Fig.
    2) and penetrates into the duo-cone seals.

    4.5.2 Components of the bottom roller


    The parts listed in table 1 refer to Fig.1, 2 and 3.

    Components of the bottom roller

    Weight
    Ref. no. Quantity Designation Further remarks
    [kg]
    1 1 Roller body  360 mm 321
    2 2 Support 52 each
    3 2 Bushing 6.5 each
    4 2 Disk 1.4 each
    5 2 O-Ring
    6 2 Duo-cone seal
    7 1 Plug
    8 2 Sealing ring
    9 ----
    10 2 O-Ring
    11 2 Plug
    12 ----
    13 4 Hex. bolt M 30 x 220 – 12.9 Tightening torque Md = 2 250 Nm
    14 4 Washer
    20 1 Securing device for transport
    30 0.2 kg Grease
    Table 1

    3657707en - (03) Page 4.5 - 1


    4.5 BOTTOM ROLLER

    Fig. 1 Bottom roller – 3659737a

    13 A
    Fig. 2 Bottom roller - 3648212a

    Page 4.5 - 2 3657707en - (03)


    4.5 BOTTOM ROLLER

    13
    Fig.3 Bottom roller - Installation - 3649775-02

    3657707en - (03) Page 4.5 - 3


    4.5 BOTTOM ROLLER

    4.5.3 Bottom roller installation


    Sequence of assembly for bottom roller installation  Tighten mounting bolts with torque according
    to chapter 2.9 - ‘Tightening procedures’.
     If the bottom roller is connected to a central
    greasing system, the plugs (11, Fig. 1) have to  Fill in grease according to the Operating and
    be removed and the o-rings (10, Fig. 1) have Maintenance Manual and plug bearing with
    to be installed. items 7 and 8 (Fig. 2).

     Position roller under the track frame and threat


    in mounting bolts (13) with washers (14).
    For grease quantity and -quality
    refer to the Operating and Mainte-
     Remove securing device (20, Fig. 4). nance Manual.

    Because of the securing device for


    transport the roller body and the  If the machine is equipped with a central
    supports have been pre-loaded. greasing system connect the grease lines to
    Therefore it is important to press the the roller.
    supports against the contact surface
    of the frame before the mounting
    bolts (13) are tightened. So the axial
    clearance of 1.0 to 2.0 mm is
    achieved.

    The supports have to contact the


    whole connecting surface of the
    track frame without any axial toler-
    ances.

    Page 4.5 - 4 3657707en - (03)


    4.5 BOTTOM ROLLER

    Fig. 4 securing device for transport - 630821

    3657707en - (03) Page 4.5 - 5


    4.5 BOTTOM ROLLER

    Page 4.5 - 6 3657707en - (03)

    You might also like