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MK21 Service Guide

Discussion in 'Repairing your own Gear' started by gnulab, Feb 8, 2019.

  1. gnulab

    gnulab Nassau Grouper

    # of Dives: 200 - 499
    Location: Jakarta, Indonesia
    78
    3
    8
    Hi,

    Does anyone have a copy of the service guide for ScubaPro MK21? I'm not sure of the torque of the 2 screws holding the bottom section and the main body.


    Thank you
    Henry
     
  2. Sevenrider860

    Sevenrider860 ScubaBoard Sponsor ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Newnan, GA
    617
    292
    63
    The two screws that hold the cap to the body have a torque value of 5 N m or 44 IN LB.
     
    gnulab likes this.
  3. gnulab

    gnulab Nassau Grouper

    # of Dives: 200 - 499
    Location: Jakarta, Indonesia
    78
    3
    8
    Hi,

    Thanks for the information.
    Do you happen to have a copy of the service manual or the schematics?
     
  4. diversteve

    diversteve mod

    # of Dives: I'm a Fish!
    Location: everywhere
    25,205
    5,150
    113
  5. Kupu

    Kupu Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: NC
    528
    20
    18
    A wonderful resource, vintagedoublehose.com has MK21 files. Scroll down the bottom and enter the manuals and catalogs section to find what you need.
     
    gnulab likes this.
  6. gnulab

    gnulab Nassau Grouper

    # of Dives: 200 - 499
    Location: Jakarta, Indonesia
    78
    3
    8
    Excellent repository of resources made available, Thank you for the heads up.
     
  7. axxel57

    axxel57 Solo Diver

    501
    170
    43
    The maintenance procedures for the MK21 of SP are pretty lousy, but for you maybe better than nothing.
    If you don't have luck elsewhere, send me a PM.....
     
  8. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    2,373
    2,526
    113
    It services like a Mk25 without a turret. Most of the rest is the same, except that the piston is a step back to one o-ring.
    Schematics are attached.
    20131109_142256.jpg
     

    Attached Files:

    couv likes this.
  9. buddhasummer

    buddhasummer Divemaster

    # of Dives: 1,000 - 2,499
    Location:
    8,474
    2,104
    113
    Pretty sure I have one. Message me if you need.
     
    axxel57 likes this.

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