You're viewing a previously published revision of this guide.  View latest revision

Older
Aug 21, 2013 - 09:08:47
Jan 16, 2014 - 02:01:30 Jan 16, 2014 - 02:01:17 Jan 16, 2014 - 02:01:08 Jan 16, 2014 - 02:01:52 Jan 16, 2014 - 02:01:41 Jan 16, 2014 - 02:01:31 Jan 16, 2014 - 02:01:06 Jan 13, 2014 - 08:01:45 Jan 08, 2014 - 12:01:54 Jan 08, 2014 - 12:01:53 Jan 08, 2014 - 12:01:38 Jan 08, 2014 - 12:01:38 Jan 08, 2014 - 12:01:06 Jan 08, 2014 - 12:01:04 Jan 08, 2014 - 12:01:22 Jan 08, 2014 - 12:01:21 Jan 08, 2014 - 12:01:40 Jan 08, 2014 - 12:01:39 Jan 08, 2014 - 12:01:41 Jan 08, 2014 - 12:01:40 Jan 08, 2014 - 12:01:21 Jan 08, 2014 - 12:01:07 Jan 08, 2014 - 12:01:06 Jan 08, 2014 - 12:01:21 Jan 08, 2014 - 12:01:21 Jan 08, 2014 - 12:01:51 Jan 08, 2014 - 12:01:50 Jan 08, 2014 - 12:01:36 Jan 08, 2014 - 12:01:36 Jan 08, 2014 - 12:01:51 Jan 08, 2014 - 12:01:50 Jan 08, 2014 - 12:01:59 Jan 08, 2014 - 12:01:58 Jan 08, 2014 - 12:01:20 Jan 08, 2014 - 12:01:20 Jan 08, 2014 - 12:01:53 Jan 08, 2014 - 12:01:52 Jan 08, 2014 - 12:01:45 Jan 08, 2014 - 12:01:44 Jan 08, 2014 - 12:01:33 Jan 08, 2014 - 12:01:33 Jan 08, 2014 - 12:01:24 Jan 08, 2014 - 12:01:23 Jan 08, 2014 - 12:01:19 Jan 08, 2014 - 12:01:17 Jan 08, 2014 - 12:01:46 Jan 08, 2014 - 12:01:45 Jan 08, 2014 - 12:01:54 Jan 08, 2014 - 12:01:54 Jan 08, 2014 - 12:01:40 Jan 08, 2014 - 12:01:39 Jan 08, 2014 - 12:01:19 Jan 08, 2014 - 12:01:18 Jan 08, 2014 - 12:01:30 Jan 08, 2014 - 12:01:30 Jan 08, 2014 - 12:01:25 Jan 08, 2014 - 12:01:25 Jan 08, 2014 - 12:01:03 Jan 08, 2014 - 12:01:02 Jan 06, 2014 - 11:01:03 Jan 06, 2014 - 11:01:02 Jan 06, 2014 - 11:01:46 Jan 06, 2014 - 11:01:46 Jan 02, 2014 - 11:01:26 Jan 02, 2014 - 11:01:25 Nov 13, 2013 - 10:11:53 Aug 30, 2013 - 09:08:28 Aug 30, 2013 - 09:08:17 Aug 30, 2013 - 09:08:08 Aug 30, 2013 - 09:08:53 Aug 26, 2013 - 02:08:08 Aug 26, 2013 - 01:08:26 Aug 26, 2013 - 12:08:42 Aug 26, 2013 - 08:08:28 Aug 26, 2013 - 08:08:41 Aug 26, 2013 - 08:08:50 Aug 26, 2013 - 08:08:02 Aug 26, 2013 - 08:08:03 Aug 26, 2013 - 08:08:48 Aug 26, 2013 - 07:08:28 Aug 26, 2013 - 07:08:52 Aug 26, 2013 - 07:08:57 Aug 26, 2013 - 07:08:58 Aug 23, 2013 - 02:08:26 Aug 23, 2013 - 02:08:15 Aug 23, 2013 - 02:08:47 Aug 23, 2013 - 02:08:19 Aug 23, 2013 - 02:08:27 Aug 23, 2013 - 02:08:17 Aug 23, 2013 - 02:08:18 Aug 23, 2013 - 02:08:51 Aug 23, 2013 - 02:08:08 Aug 23, 2013 - 02:08:45 Aug 23, 2013 - 02:08:54 Aug 23, 2013 - 02:08:06 Aug 23, 2013 - 02:08:07 Aug 23, 2013 - 02:08:34 Aug 23, 2013 - 02:08:30 Aug 23, 2013 - 02:08:37 Aug 23, 2013 - 02:08:01 Aug 23, 2013 - 02:08:26 Aug 23, 2013 - 06:08:22 Aug 23, 2013 - 06:08:52 Aug 23, 2013 - 06:08:20 Aug 21, 2013 - 09:08:54 Aug 21, 2013 - 09:08:44 Aug 21, 2013 - 09:08:22 Aug 21, 2013 - 09:08:59 Aug 21, 2013 - 09:08:38 Aug 21, 2013 - 09:08:12 Aug 21, 2013 - 09:08:46 Aug 21, 2013 - 09:08:25 Aug 21, 2013 - 09:08:03 Aug 21, 2013 - 09:08:43 Aug 21, 2013 - 09:08:52 Aug 21, 2013 - 09:08:19 Aug 21, 2013 - 09:08:01 Aug 21, 2013 - 09:08:38 Aug 21, 2013 - 09:08:11 Aug 21, 2013 - 09:08:28 Aug 21, 2013 - 09:08:56 Aug 21, 2013 - 09:08:40 Aug 21, 2013 - 09:08:20 Aug 21, 2013 - 09:08:30 Aug 21, 2013 - 09:08:47 Aug 21, 2013 - 09:08:48 Aug 21, 2013 - 08:08:05 Aug 21, 2013 - 08:08:21 Aug 21, 2013 - 08:08:52 Aug 21, 2013 - 08:08:47 Aug 21, 2013 - 07:08:18 Aug 21, 2013 - 07:08:20 Aug 21, 2013 - 07:08:02 Aug 21, 2013 - 07:08:33 Aug 21, 2013 - 07:08:20 Aug 19, 2013 - 01:08:48 Aug 19, 2013 - 01:08:50 Aug 19, 2013 - 01:08:49 Aug 09, 2013 - 09:08:02 Aug 09, 2013 - 09:08:04 Aug 09, 2013 - 09:08:12 Aug 09, 2013 - 09:08:13 Aug 09, 2013 - 09:08:26 Aug 09, 2013 - 09:08:01 Aug 09, 2013 - 09:08:37 Aug 09, 2013 - 09:08:26 Aug 09, 2013 - 09:08:01 Aug 09, 2013 - 08:08:10 Aug 09, 2013 - 08:08:33 Aug 09, 2013 - 08:08:54 Aug 09, 2013 - 08:08:05 Aug 09, 2013 - 08:08:34 Aug 09, 2013 - 08:08:59 Aug 09, 2013 - 08:08:50 Aug 09, 2013 - 08:08:59 Aug 09, 2013 - 08:08:54 Aug 09, 2013 - 08:08:24 Aug 09, 2013 - 08:08:41 Aug 09, 2013 - 08:08:49 Aug 09, 2013 - 07:08:33 Aug 09, 2013 - 07:08:11 Aug 09, 2013 - 06:08:24 Aug 09, 2013 - 06:08:17 Aug 09, 2013 - 06:08:45 Aug 09, 2013 - 06:08:27 Aug 09, 2013 - 06:08:11 Aug 09, 2013 - 06:08:49 Aug 09, 2013 - 06:08:23 Aug 09, 2013 - 06:08:58 Aug 09, 2013 - 06:08:50 Aug 09, 2013 - 06:08:57 Aug 09, 2013 - 06:08:03 Aug 09, 2013 - 06:08:46 Aug 09, 2013 - 06:08:34 Aug 09, 2013 - 06:08:17 Aug 09, 2013 - 06:08:36 Aug 09, 2013 - 06:08:33 Aug 09, 2013 - 06:08:58 Aug 09, 2013 - 06:08:40 Aug 08, 2013 - 01:08:28 Aug 08, 2013 - 01:08:01 Aug 08, 2013 - 01:08:42 Aug 08, 2013 - 01:08:35 Aug 08, 2013 - 01:08:42 Aug 08, 2013 - 01:08:45 Aug 08, 2013 - 01:08:37 Aug 08, 2013 - 01:08:22 Aug 08, 2013 - 01:08:44 Aug 08, 2013 - 01:08:32 Aug 08, 2013 - 01:08:22 Aug 08, 2013 - 01:08:35 Aug 08, 2013 - 01:08:42 Aug 08, 2013 - 01:08:06 Aug 08, 2013 - 01:08:17 Aug 08, 2013 - 01:08:56 Aug 08, 2013 - 01:08:31 Aug 08, 2013 - 01:08:08 Aug 08, 2013 - 01:08:45 Aug 08, 2013 - 01:08:23 Aug 08, 2013 - 01:08:57 Aug 08, 2013 - 01:08:37 Aug 08, 2013 - 01:08:38 Aug 08, 2013 - 01:08:19 Aug 08, 2013 - 01:08:58 Aug 08, 2013 - 01:08:38 Aug 08, 2013 - 01:08:19 Aug 08, 2013 - 01:08:12 Aug 08, 2013 - 01:08:43 Aug 08, 2013 - 01:08:44 Aug 08, 2013 - 12:08:30 Aug 08, 2013 - 12:08:13 Aug 08, 2013 - 12:08:54 Aug 08, 2013 - 12:08:49 Aug 08, 2013 - 12:08:36 Aug 08, 2013 - 12:08:38 Aug 08, 2013 - 12:08:11 Aug 08, 2013 - 12:08:45 Aug 08, 2013 - 12:08:59 Aug 08, 2013 - 12:08:34 Aug 08, 2013 - 12:08:14 Aug 07, 2013 - 07:08:08 Aug 07, 2013 - 07:08:24 Aug 05, 2013 - 09:08:13 Aug 05, 2013 - 09:08:55 Aug 05, 2013 - 09:08:47 Aug 05, 2013 - 09:08:15 Aug 05, 2013 - 08:08:41 Aug 05, 2013 - 08:08:54 Aug 05, 2013 - 08:08:09 Aug 05, 2013 - 08:08:13 Aug 05, 2013 - 07:08:29 Aug 05, 2013 - 07:08:44 Aug 05, 2013 - 07:08:40 Aug 05, 2013 - 07:08:16 Aug 05, 2013 - 07:08:01 Aug 05, 2013 - 07:08:08 Aug 05, 2013 - 07:08:13 Aug 05, 2013 - 06:08:06 Aug 05, 2013 - 06:08:16 Aug 05, 2013 - 06:08:01 Aug 05, 2013 - 06:08:54 Aug 05, 2013 - 06:08:43 Aug 05, 2013 - 06:08:01 Aug 05, 2013 - 06:08:27 Aug 05, 2013 - 06:08:34 Aug 05, 2013 - 06:08:35 Aug 05, 2013 - 06:08:57 Aug 05, 2013 - 06:08:30 Aug 05, 2013 - 06:08:01 Aug 05, 2013 - 06:08:42 Aug 05, 2013 - 06:08:53 Aug 05, 2013 - 06:08:17 Aug 05, 2013 - 06:08:52 Aug 05, 2013 - 06:08:18 Aug 05, 2013 - 06:08:11 Aug 05, 2013 - 06:08:41 Aug 05, 2013 - 05:08:35 Aug 05, 2013 - 05:08:09 Aug 05, 2013 - 05:08:13 Aug 02, 2013 - 01:08:50 Aug 02, 2013 - 01:08:50 Aug 02, 2013 - 01:08:09 Aug 02, 2013 - 01:08:36 Aug 02, 2013 - 01:08:14 Aug 02, 2013 - 01:08:46 Aug 02, 2013 - 01:08:20 Aug 02, 2013 - 12:08:54 Aug 01, 2013 - 12:08:11 Aug 01, 2013 - 12:08:16 Aug 01, 2013 - 12:08:53 Aug 01, 2013 - 12:08:04 Aug 01, 2013 - 12:08:02 Aug 01, 2013 - 12:08:22 Aug 01, 2013 - 12:08:10 Aug 01, 2013 - 12:08:12 Aug 01, 2013 - 12:08:54 Aug 01, 2013 - 12:08:35 Aug 01, 2013 - 12:08:48 Aug 01, 2013 - 12:08:36 Aug 01, 2013 - 07:08:17 Aug 01, 2013 - 07:08:45 Aug 01, 2013 - 07:08:24 Aug 01, 2013 - 07:08:46 Aug 01, 2013 - 07:08:27 Aug 01, 2013 - 07:08:36 Aug 01, 2013 - 07:08:08 Aug 01, 2013 - 07:08:47 Aug 01, 2013 - 06:08:19 Aug 01, 2013 - 06:08:53 Aug 01, 2013 - 06:08:44 Aug 01, 2013 - 05:08:35 Jul 31, 2013 - 02:07:11 Jul 31, 2013 - 02:07:36 Jul 31, 2013 - 02:07:50 Jul 31, 2013 - 02:07:19 Jul 31, 2013 - 02:07:05 Jul 31, 2013 - 02:07:11 Jul 31, 2013 - 02:07:34 Jul 31, 2013 - 01:07:04 Jul 31, 2013 - 01:07:46 Jul 31, 2013 - 01:07:15 Jul 31, 2013 - 01:07:27 Jul 31, 2013 - 01:07:33 Jul 31, 2013 - 01:07:15 Jul 31, 2013 - 01:07:07 Jul 31, 2013 - 01:07:16 Jul 31, 2013 - 01:07:04 Jul 31, 2013 - 01:07:33 Jul 31, 2013 - 01:07:10 Jul 31, 2013 - 01:07:36 Jul 31, 2013 - 01:07:38 Jul 31, 2013 - 01:07:32 Jul 31, 2013 - 01:07:22 Jul 31, 2013 - 12:07:26 Jul 31, 2013 - 12:07:17 Jul 31, 2013 - 12:07:21 Jul 31, 2013 - 12:07:44 Jul 31, 2013 - 12:07:07 Jul 31, 2013 - 12:07:30 Jul 31, 2013 - 12:07:01 Jul 31, 2013 - 12:07:58 Jul 31, 2013 - 12:07:52 Jul 31, 2013 - 11:07:39 Jul 31, 2013 - 11:07:31 Jul 31, 2013 - 11:07:18 Jul 31, 2013 - 11:07:51 Jul 31, 2013 - 11:07:18 Jul 31, 2013 - 11:07:13 Jul 31, 2013 - 10:07:05 Jul 31, 2013 - 10:07:51 Jul 31, 2013 - 10:07:28 Jul 31, 2013 - 10:07:04 Jul 31, 2013 - 10:07:25 Jul 31, 2013 - 10:07:42 Jul 31, 2013 - 10:07:44 Jul 31, 2013 - 10:07:24 Jul 31, 2013 - 10:07:27 Jul 26, 2013 - 10:07:35 Jul 26, 2013 - 10:07:54 Jul 26, 2013 - 10:07:17
Newer

How to Repair a Bleed Down Valve Assembly ll #12981

Written By: Adam Dumas (and 2 other contributors)
  • Comments: 2
  • Favorites: 3
  • Completions: 6

Difficulty

Moderate

Steps

26

Time Required

00:30:00 - 00:45:00

Sections

1

Flags

1

Private

Private

This guide will not appear in search results and can only be viewed by team members!

  1. Always make sure all high-pressure water has been removed from valve by following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death. Turn OFF all hydraulic and water pressure to bleed-down valve

    • Always make sure all high-pressure water has been removed from valve by following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.

    • Turn OFF all hydraulic and water pressure to bleed-down valve

    • Loosen hydraulic hose from hydraulic fitting using 7/8" and 3/4" wrench

  2. Unthread hose from hydraulic fitting Loosen gland nut from side inlet of valve body Unthread gland nut from side inlet of valve body

    • Unthread hose from hydraulic fitting

    • Loosen gland nut from side inlet of valve body

    • Unthread gland nut from side inlet of valve body

    • Clean gland nut of all blue goop with isopropyl alcohol

    • Loosen HP gland from outlet adapter using 13/16" and 1" wrench

    • Unthread HP gland from outlet adapter

  4. Clean gland nut of all blue goop with isopropyl alcohol Loosen hydraulic fitting from adapter fitting using 1-1/4" and 7/8" wrench

    • Clean gland nut of all blue goop with isopropyl alcohol

    • Loosen hydraulic fitting from adapter fitting using 1-1/4" and 7/8" wrench

    • Unthread hydraulic fitting from adapter fitting

  5. Apply o-ring lubricant to o-ring from kit for hydraulic fitting Replace o-ring around hydraulic fitting with o-ring in kit (smallest o-ring in kit) Loosen adapter fitting from Actuator Housing using 1-1/4" and 1-1/16" wrench

    • Apply o-ring lubricant to o-ring from kit for hydraulic fitting

    • Replace o-ring around hydraulic fitting with o-ring in kit (smallest o-ring in kit)

    • Loosen adapter fitting from Actuator Housing using 1-1/4" and 1-1/16" wrench

  6. Unthread adapter fitting from actuator housing Apply o-ring lubricant to largest o-ring in kit Replace o-ring on adapter fitting with largest o-ring in kit

    • Unthread adapter fitting from actuator housing

    • Apply o-ring lubricant to largest o-ring in kit

    • Replace o-ring on adapter fitting with largest o-ring in kit

  7. Loosen actuator housing from Valve Body using 1-1/16" and 7/8" wrench Unthread actuator housing from valve body Push the Piston out of actuator housing through oil port using included dowel

    • Loosen actuator housing from Valve Body using 1-1/16" and 7/8" wrench

    • Unthread actuator housing from valve body

    • Push the Piston out of actuator housing through oil port using included dowel

  8. Discard o-ring and backup ring from piston Inspect piston, if damage is visible, replace Apply o-ring lubricant to o-ring and back-up ring

    • Discard o-ring and backup ring from piston

    • Inspect piston, if damage is visible, replace

    • Apply o-ring lubricant to o-ring and back-up ring

  9. Slide new back-up o-ring (flat) to groove of piston Make sure concave of back-up ring side is towards o-ring Slide new o-ring (rounded) to groove of piston Insert piston assembly into actuator housing and push with included dowel

    • Slide new back-up o-ring (flat) to groove of piston Make sure concave of back-up ring side is towards o-ring

    • Slide new o-ring (rounded) to groove of piston

    • Insert piston assembly into actuator housing and push with included dowel

  10. Loosen outlet fitting from bleed down valve body using 7/8" and 13/16" wrench Unthread outlet fitting from bleed down valve body

    • Loosen outlet fitting from bleed down valve body using 7/8" and 13/16" wrench

    • Unthread outlet fitting from bleed down valve body

  11. Remove HP Seat from bleed down valve body Remove Flow Reducer from outlet adapter

    • Remove HP Seat from bleed down valve body

    • Remove Flow Reducer from outlet adapter

  12. Clean outlet adapter of all blue goop with isopropyl alcohol Discard seat Loosen back-up screw from top of bleed down valve body using a 5/16" ratchet

    • Clean outlet adapter of all blue goop with isopropyl alcohol

    • Discard seat

    • Loosen back-up screw from top of bleed down valve body using a 5/16" ratchet

  13. Unthread seal back-up screw from top of bleed down valve body Clean seal back-up screw with isopropyl alcohol Push components through bleed down valve body with included dowel

    • Unthread seal back-up screw from top of bleed down valve body

    • Clean seal back-up screw with isopropyl alcohol

    • Push components through bleed down valve body with included dowel

  14. Clean bleed down valve body with isopropyl alcohol Apply high vacuum grease to Needle Slide back-up screw on to needle to flat end of needle is flush with non threaded part of back-up screw

    • Clean bleed down valve body with isopropyl alcohol

    • Apply high vacuum grease to Needle

    • Slide back-up screw on to needle to flat end of needle is flush with non threaded part of back-up screw

  15. Slide bushing onto point of needle with chamfered end towards back-up screw Place hoop with tapered end onto onto HP Seal opposite from o-ring Place HP seal assembly onto point of needle with hoop first

    • Slide bushing onto point of needle with chamfered end towards back-up screw

    • Place hoop with tapered end onto onto HP Seal opposite from o-ring

    • Place HP seal assembly onto point of needle with hoop first

  16. Apply high vacuum grease to exterior of HP seal, hoop, and bushing Apply high vacuum grease to internal threads of bleed down valve body Insert high pressure needle assembly into top of bleed down valve body with point first

    • Apply high vacuum grease to exterior of HP seal, hoop, and bushing

    • Apply high vacuum grease to internal threads of bleed down valve body

    • Insert high pressure needle assembly into top of bleed down valve body with point first

  17. Push seal backup screw inside of valve body until it bottoms out Take seal backup screw out of body and apply a layer of blue goop to threads Thread in back-up screw into top of bleed down valve body

    • Push seal backup screw inside of valve body until it bottoms out

    • Take seal backup screw out of body and apply a layer of blue goop to threads

    • Thread in back-up screw into top of bleed down valve body

  18. Tighten back-up screw to top of bleed down valve body using a 5/16" ratchet Place flow reducer into hole beneath seat cavity in outlet adapter Apply a layer of blue goop to external threads and seat cavity of outlet adapter

    • Tighten back-up screw to top of bleed down valve body using a 5/16" ratchet

    • Place flow reducer into hole beneath seat cavity in outlet adapter

    • Apply a layer of blue goop to external threads and seat cavity of outlet adapter

  19. Place poppet seat into seat cavity of outlet adapter Apply a layer of blue goop to top of poppet seat sitting in outlet adapter Thread outlet adapter into valve body

    • Place poppet seat into seat cavity of outlet adapter

    • Apply a layer of blue goop to top of poppet seat sitting in outlet adapter

    • Thread outlet adapter into valve body

  20. Using a 1" wrench on outlet adapter and a 7/8" wrench on the valve body, tighten securely Apply a layer of blue goop to external threads of valve body Thread actuator housing onto valve body

    • Using a 1" wrench on outlet adapter and a 7/8" wrench on the valve body, tighten securely

    • Apply a layer of blue goop to external threads of valve body

    • Thread actuator housing onto valve body

  21. Tighten using a 1-1/16" wrench on actuator housing and a 7/8" wrench on valve body

    • Tighten using a 1-1/16" wrench on actuator housing and a 7/8" wrench on valve body

    • Apply blue goop to gland nut threads

    • Thread in gland nut with HP tubing into bleed down valve adapter

    • Tighten gland nut into bleed down valve adapter using 13/16" and 5/8" wrench

  23. Apply blue goop to gland nut threads Thread in gland nut to side of bleed down valve body Tighten gland nut to side of bleed down valve body with using 3/4" and 5/8" wrench

    • Apply blue goop to gland nut threads

    • Thread in gland nut to side of bleed down valve body

    • Tighten gland nut to side of bleed down valve body with using 3/4" and 5/8" wrench

  24. Thread in adapter fitting into actuator housing Tighten adapter fitting into actuator housing Thread in hydraulic adapter into adapter fitting

    • Thread in adapter fitting into actuator housing

    • Tighten adapter fitting into actuator housing

    • Thread in hydraulic adapter into adapter fitting

  25. Tighten hydraulic fitting into adapter fitting Thread hydraulic hose to hydraulic fitting Tighten hydraulic hose to hydraulic fitting using 7/8" and 3/4" wrench

    • Tighten hydraulic fitting into adapter fitting

    • Thread hydraulic hose to hydraulic fitting

    • Tighten hydraulic hose to hydraulic fitting using 7/8" and 3/4" wrench

  26. Turn pump ON and continue cutting process

    • Turn pump ON and continue cutting process

Author

with 2 other contributors

Adam Dumas

Member since: 05/20/2013

36 Guides authored