Contents

Encase Pump Service Manual

• Valve Seal Replacement
• Lower Bushing Replacement
• Enviro-Lock Screw Replacement
• Check Valve Seal Replacement
• Trimming Ends of Bottle Cage Mount
• Valve Housing Seal Replacement

O-Ring Replacement Guide

• Valve Housing O-Ring Replacement
• Head O-Ring Replacement
• Check Valve O-Ring Replacement
• Piston O-Ring Replacement
• Enviro-Lock O-Ring Replacement

 

Encase Pump Service Manual 

All Potential Tools required: 

8mm Hex Wrench 

Pick 

Spanner or Pliers with 2mm diameter or smaller tips 

Grease 

Clean Rag 

Isopropyl Alcohol 

Lint free cloth 

Crescent Wrench 

Bench Vise, Pliers Wrench, or Snippers 

Routine Service 

1. Using a 8mm hex wrench, unscrew the valve housing from the head and push out the urethane valve seal 
   
   
2. Using a clean rag and isopropyl alcohol clean the inside and outside of the valve housing, the inside of the valve cover seal, the valve seal and the edges of the head
   
   
3. Depending upon its condition, either reinstall or replace the valve seal. Ensure that the stepped side points outwards. Screw the valve housing back into the head using the 8mm wrench. Tighten until the lip bottoms out solidly on the mating face of the head, do not over tighten 
   
   
4. Unscrew the pump head from the outer cylinder 
   
   
5. Using a spanner or pliers that have tips with a 2mm diameter or smaller, unscrew the vent cap from the underside of the head. Remove the check valve seal from the cavity
   
   
6. Remove the o-ring from the outside of the vent cap. If there is any dirt or residue inside the cavity, use a clean rag and isopropyl alcohol to thoroughly clean it 
   
   
7. Depending on its condition, either reinstall or replace the o-ring on the outside of the vent cap. Use a small amount of grease 
   
   
8. Depending upon its condition, either reinstall or replace the check valve seal. Hold the vent cap upright with the spanner or pliers and place the check valve into the vent cap
   
   
9. Without flipping the head over, screw the vent cap back into the head until it is hand tight, making sure that the check valve seal stays inside the edges of the vent cap and doesn't get pinched during tightening 
   
10. 10.Extend the handle and unscrew the handle from the inner cylinder. Push the inner cylinder out the top of the outer cylinder 
    

11. Slide the Enviro-Lock screw off the top of the outer cylinder
    
12. Using a pick, unseat the bushing from it’s groove in the inside of the outer cylinder 
13. Clean the interior of the outer cylinder with isopropyl alcohol and a lint free cloth. Finish by running the lint-free cloth through the inside
    
14. Using isopropyl alcohol and a clean rag, clean the bushing, removing all grease and debris
    
15. Depending on its condition, either reinstall or replace the bushing. Slightly overlap the split edges until the bushing pops into the groove of the outer cylinder. It should be able to spin freely, but not move out of the groove
    
16. Apply a very thin layer of grease to the internal face of the bushing, just enough to coat the surface but not have excess
    
17. Remove the piston O-Ring from the piston in order to clean and degrease both with a clean rag and isopropyl alcohol
    
18. Reinstall or replace the piston o-ring. Apply a layer of grease to the piston o-ring and some to the inside surface of the outer cylinder 
19. Slide the inner cylinder back into the outer cylinder. The end of the inner cylinder that has external threads should enter the top of the outer cylinder (the side that does not have the bushing). Extend and compress the inner cylinder in and out a few times for the grease to properly coat the inside of the outer cylinder. Wipe any excess grease from the inner cylinder after the inside of the outer cylinder has been properly coated
20. Remove both the inner and outer o-rings from the Enviro-Lock screw
21. Using a clean rag and isopropyl alcohol, thoroughly clean any residue or debris from the inside and outside of the Enviro-Lock screw, as well as cleaning the o-rings
22. Reinstall both o-rings onto the Enviro-Lock screw noting that they are different sizes. Take care to install the thicker o-ring inside. Add a dab of grease to the internal o-ring and spread around before reinstalling on the cylinder
23. Slide the Enviro Lock screw back onto the outer cylinder, thread side towards the lip. Rotate/spread around the Enviro-Lock seal on the cylinder so that the contact between the inner o-ring and the cylinder is greased
24. Screw the handle back on to the end of the inner cylinder until it’s hand tight
25. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and is hand tight

 

Valve Seal Replacement 

1. Using a 8mm hex wrench, unscrew the valve housing from the head and push out the urethane valve seal 
2. Using a clean rag and isopropyl alcohol clean the inside and outside of the valve housing, the inside of the valve cover seal, the valve seal and the edges of the head 
3. Depending upon its condition, either reinstall or replace the valve seal. Ensure that the stepped side points outwards. Screw the valve housing back into the head using the 8mm wrench. Tighten until the lip bottoms out solidly on the mating face of the head, do not over tighten

Lower Bushing Replacement 

1. Unscrew the pump head from the outer cylinder 
2. Extend the handle and unscrew the handle from the inner cylinder and push the inner cylinder out the top of the outer cylinder 
3. Using a pick, unseat the bushing from it’s grove in the inside of the outer cylinder
4. Clean the interior of the outer cylinder with isopropyl alcohol and a lint free cloth. Finish by running the cloth through the inside 
5. Install the replacement bushing by slightly overlapping the split edges until it pops into the groove of the cylinder. It should be able to spin freely, but not move out of the groove 
6. Apply a very thin layer of grease to the internal face of the new bushing, just enough to coat the surface but not have excess
7. Slide the inner cylinder back into the outer cylinder. The end of the inner cylinder that has external threads should enter the top of the outer cylinder (the side that does not have the bushing). Extend and compress the inner cylinder in and out a few times for the grease to properly coat the inside of the outer cylinder. Wipe any excess grease from the inner cylinder after the inside of the outer cylinder has been properly coated 
8. Screw the handle back on to the end of the inner cylinder until it’s hand tight 
9. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and it is hand tight

Enviro-Lock Screw Replacement 

1. Unscrew the head from the top of the outer cylinder 
2. Slide the Enviro-Lock Screw up and off of the cylinder 
3. If just replacing the o-rings, remove both the external and internal o-rings, taking care to note that they are different sizes
4. Using a clean rag and water, thoroughly clean any residue or debris from the inside and outside of the Enviro-Lock screw, and reinstall the new o-rings 
5. Add a dab of grease to the internal o-ring and spread around before reinstalling on the cylinder. If replacing the entire Enviro-Lock Screw it’s still necessary to grease the internal O-Ring before putting the new assembled screw on 
6. Slide the Enviro Lock screw back onto the outer cylinder, thread side towards the lip. Rotate/spread around the Enviro-Lock seal on the cylinder so that the contact between the inner o-ring and the cylinder is greased

7. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and it is hand tight

Check Valve Seal Replacement 

1. Unscrew the head from the top of the outer cylinder 
2. Using a spanner or pliers that have tips with a 2mm diameter or smaller, unscrew the vent cap from the underside of the head. Remove the old check valve seal from the cavity 
3. Remove the o-ring from the outside of the vent cap. If there is any dirt or residue inside the cavity, use a clean rag and isopropyl alcohol to thoroughly clean it
4. Depending on its condition, either reinstall or replace the o-ring on the outside of the vent cap. Use a small amount of grease 
5. Hold the vent cap upright with the spanner or pliers and place the new check valve seal into the vent cap 
6. Without flipping over, screw the vent cap back into the head until it is hand tight, making sure that the check valve seal stays inside the edges of the vent cap and doesn’t get pinched during tightening
7. Screw the head back on to the top of the outer cylinder until the cylinder. bottoms out on the plastic and is hand tight

Trimming Ends of Mounting Bracket 

First, be sure that you want to break off the tabs of the mounting bracket, there’s no untrimming these tabs. Replacement pump mounts are available at wolftoothcomponents.com

Method A: Pliers 

1. Put the pump in the bracket, this will help you get better leverage when trying to break the ears off
2. Clamp down on one ear with your wrench pliers below the break line and snap the ear off 
3. Repeat for the other side 
4. Use a utility knife or sandpaper to remove any jagged edges

Method B: Bench Vise 

1. Clamp one ear in the vise jaws just below the break line 2. Push the rest of the bracket to one side until the ear snaps off 3. Repeat for the other side 
2. Use a utility knife or sandpaper to remove any jagged edges 

Method C: Wire Snippers or Trimmers 

1. Use your trimmers to snip the ears off along the molded break lines 2. Use a utility knife or sandpaper to remove any jagged edges

Valve Housing Seal Replacement 

1. No disassembling is necessary for this replacement 
2. Pull the valve housing seal out of its groove on the head and up and over the back of the head 
3. Reinstall the new seal the same way in reverse. Make sure the strap is not twisted in the groove on the head
   

O-Ring Replacement Guide 

Valve Housing O-Ring Replacement 

1. Using an 8mm Hex Wrench, unscrew the valve housing from the pump head 2. Use a pick to remove the o-ring from the outside of the valve housing 3. Use a clean rag and isopropyl alcohol to remove any debris from the outside of the valve housing 
2. Install the new o-ring with a dab of grease 
3. Reinstall the valve housing into the pump head using the 8mm hex wrench. Tighten until the valve housing bottoms out firmly on the head, there is no need to over tighten. 

Head O-Ring Replacement 

1. Unscrew the head from the outer cylinder 
2. Use a pick to remove the o-ring from the outside of the head 
3. Use a clean rag and isopropyl alcohol to remove any debris from the outside of the head 4. Install the new o-ring with a dab of grease 
4. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and it is hand tight 

Check Valve O-Ring Replacement 

1. Unscrew the head from the top of the outer cylinder 
2. Using a spanner or pliers that have tips with a 2mm diameter or smaller, unscrew the vent cap from the underside of the head 
3. Remove the o-ring from the outside of the vent cap 
4. If there is any dirt or residue inside the cavity, remove the check valve seal, use a clean rag and isopropyl alcohol to thoroughly clean it 
5. Install the new o-ring to the outside of the vent cap with a dab of grease 6. Hold the vent cap upright with the spanner or pliers and place the check valve seal into the vent cap 
6. Without flipping over, screw the vent cap back into the head until it is hand tight, making sure that the check valve seal stays inside the edges of the vent cap and doesn’t get pinched during tightening 

Piston O-Ring Replacement 

1. Unscrew the head from the top of the outer cylinder 
2. Extend the handle and unscrew the handle from the inner cylinder 
3. Push the inner cylinder out the top of the outer cylinder 
4. Remove the piston o-ring from its groove on the piston 
5. If there is any dirt or residue on the piston, use a clean rag and isopropyl alcohol to thoroughly clean 
6. Install the new piston o-ring onto the groove 
7. Apply a generous layer of grease to the o-ring
8. Clean the inside of the outer cylinder by first removing the lower bushing using a pick, then spraying the inside of the tube with isopropyl alcohol, and running a clean lint free cloth through the cavity a few times 
9. Reinstall the lower bushing, and add a small touch of grease to the lower bushing, just enough to grease the face 
10. Apply a swipe of grease to the inside surface of the outer cylinder 
11. Slide the inner cylinder back into the outer cylinder. The end of the inner cylinder that has external threads should enter the top of the outer cylinder (the side that does not have the bushing. You will need to pull the inner cylinder in and out a few times for the grease to properly coat the inside of the outer cylinder. Once properly coated, wipe any excess grease from the inner cylinder 
12. Screw the handle back on to the end of the inner cylinder until it’s hand tight 13. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and it is hand tight 

Enviro-Lock O-Ring Replacement 

1. Unscrew the Enviro-Lock screw from the handle 
2. Unscrew the head from the top of the outer cylinder 
3. Slide the Enviro-Lock Screw up and off of the cylinder 
4. Remove both the external and internal o-rings, taking care to note that they are different sizes 
5. Using a clean rag and isopropyl alcohol, thoroughly clean any residue or debris from the inside and outside of the Enviro-Lock screw. 
6. Reinstall both o-rings onto the Enviro-Lock screw noting that they are different sizes. Take care to install the thicker o-ring inside. 
7. Add a dab of grease to the internal o-ring and spread around evenly as you slide the Enviro-Lock screw back onto the outer cylinder 
8. Screw the head back on to the top of the outer cylinder until the cylinder bottoms out on the plastic and it is hand tight