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Always make sure all high-pressure water has been removed from the valve by following the machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.
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Turn OFF all hydraulic and water pressure to the bleed-down valve.
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Loosen the hydraulic hose from the hydraulic fitting using 7/8" and 3/4" wrench.
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Unthread the hydraulic hose from the hydraulic fitting.
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Loosen the 1/4" gland nut from the side inlet of the valve body.
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Unthread the 1/4" gland nut from the side inlet of the valve body.
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Clean 3/8" gland nut of all blue goop with isopropyl alcohol
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Loosen 3/8" HP gland from outlet adapter using 13/16" and 1" wrench
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Unthread 3/8" HP gland from outlet adapter
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Clean 3/8" gland nut of all blue goop with isopropyl alcohol
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Loosen hydraulic fitting from adapter fitting using 1-1/4" and 7/8" wrench
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Unthread hydraulic fitting from adapter fitting
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Apply o-ring lubricant to o-ring from kit for hydraulic fitting
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Replace o-ring on hydraulic fitting with o-ring in kit (smallest o-ring in kit)
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Loosen adapter fitting from Actuator Housing using 1-1/4" and 1-1/16" wrench
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Unthread adapter fitting from actuator housing
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Apply o-ring lubricant to largest o-ring in kit
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Replace o-ring on adapter fitting with largest o-ring in kit
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Loosen actuator housing from Valve Body using 1-1/16" and 7/8" wrench
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Unthread actuator housing from valve body
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Push Piston out of actuator housing through oil port using included dowel
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Discard o-ring and back-up ring from piston
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Inspect piston, if damage is visible, replace
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Apply o-ring lubricant to o-ring and back-up ring
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Slide new back-up ring (flat) into groove of piston.
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Make sure concave of back-up ring side is towards o-ring
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Slide new o-ring (rounded) into groove of piston
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Insert piston assembly into actuator housing and push with included dowel
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Loosen outlet fitting from bleed down valve body using 7/8" and 13/16" wrench
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Unthread outlet fitting from bleed down valve body
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Remove HP Seat from bleed down valve body and discard
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Remove Flow Reducer from outlet adapter
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Clean outlet adapter and flow reducer of all blue goop with isopropyl alcohol
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Loosen back-up screw from top of bleed down valve body using 5/16" socket wrench
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Unthread Seal Back-up Screw from top of bleed down valve body
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Clean seal back-up screw with isopropyl alcohol
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Push components through bleed down valve body with included dowel
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Clean bleed down valve body with isopropyl alcohol or similar
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Apply High Vacuum Grease to Needle
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Slide back-up screw on to needle so flat end of needle is flush with non threaded part of back-up screw
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Slide bushing onto point of needle with chamfered end towards back-up screw
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Place hoop onto HP Seal with tapered end towards seal and opposite from o-ring
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Place HP seal assembly onto point of needle with hoop first
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Apply high vacuum grease to exterior of HP seal, hoop, and bushing
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Apply high vacuum grease to internal threads of bleed down valve body
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Insert high pressure needle assembly into top of bleed down valve body with point first
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Push seal back-up screw inside of valve body until it bottoms out
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Take seal back-up 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
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Tighten back-up screw to top of bleed down valve body using a 5/16" socket wrench
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Place flow reducer into hole beneath seat cavity in outlet adapter
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Apply a layer of blue goop to external threads and seat cavity of outlet adapter
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Place poppet seat into seat cavity of outlet adapter
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Apply a layer of blue goop to top of poppet seat sitting in outlet adapter
-
Thread outlet adapter into valve body
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Using a 1" wrench on outlet adapter and a 7/8" wrench on the valve body, tighten securely
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Apply a layer of blue goop to external threads of valve body
-
Thread actuator housing onto valve body
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-
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Tighten using a 1-1/16" wrench on actuator housing and a 7/8" wrench on valve body
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Apply blue goop to 3/8" gland nut threads
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Thread 3/8" gland nut with HP tubing into bleed down valve adapter
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-
-
Tighten gland nut into bleed down valve adapter using 13/16" and 5/8" wrench
-
Apply blue goop to 1/4" gland nut threads
-
Thread 1/4" gland nut into side of bleed down valve body
-
-
-
Tighten gland nut to side of bleed down valve body with using 3/4" and 5/8" wrench
-
Thread adapter fitting into actuator housing
-
Tighten adapter fitting into actuator housing using 1-1/4" and 1-1/16" wrench
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-
Thread hydraulic fitting into hydraulic adapter
-
Tighten hydraulic fitting into hydraulic adapter
-
Thread hydraulic hose onto hydraulic fitting
-
-
-
Tighten hydraulic hose to hydraulic fitting using 7/8" and 3/4" wrench
-
Turn pump ON and continue cutting process
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