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Resumen del manual
See Fig. 1, page 27. 2. Remove the eight bolts ( ref# 17) securing the paint head ( ref# 18) to the hydraulic head ( ref# 53). 3. Remove diaphragm ( ref# 51) from the hydraulic head. 4. If the diaphragm’s metal hubs are rough or sharp, replace with complete diaphragm. Continue at step 11. 5. If the diaphragm’s hubs are smooth and unworn, replace with repair kit ( ref# 52). 6. Dismantle old diaphragm. 7. Slide “large” steel hub (A) onto new screw (B) provide in kit. The screw should fit in counter sunk hole, leaving the flat side of hub facing away from screw head. 8. Thread the small nylon disc (C), diaphragm pad (D) and second small disc (C) onto the screw. There is no correct side to the pads. They MUST be threaded on to avoid leakage due to the hole being enlarged. 9. Slide the smaller hub (E) onto the screw, being certain the beveled edge of the plate is next to the nylon pads. During operation the diaphragm flexes over the beveled edge. If reversed, ( flat edge against diaphragm ) the diaphragm will be cut on the sharp edge while in operation. Thread on and tighten nut (F), supplied in kit. DO NOT re-use old nut. 10. Fill the hydraulic head cavity with genuine H.E.R.O. hydraulic oil, before placing diaphragm onto hydraulic head. 11. Place new or repair diaphragm onto hydraulic head with the large hub facing up ( Screw head visible ). Ensure diaphragm is centered and within the hydraulic head’s recessed area. 12. Place paint head / endcap assembly onto the hydraulic head. Ensure correct orientation. 13. Install mounting bolts, and using a criss-cross pattern, tighten bolts to 30 foot pounds. 14. Purge hydraulic oil system per instructions on page 19. ¦ The diaphragm will take on a wrinkled or puckered appearance almost immediately after operation begins. Do Not be concerned by this. A diaphragm requires replacement when hydraulic oil appears in the spray material. Annual replacement of the diaphragm is recommended as part of your preventive maintenance procedures. H.E.R.O. INDUSTRIES 26 Model 3000 Owner’s Manual PRESSURE CONTROL VALVE 8078 81 827976 86858483 87 88 77 74 Tools or Supplies Required ¦ Vise ¦ 11/16” Open end wrench ¦ H.E.R.O. hydraulic oil ¦ 7/16” Open end wrench ¦ 1” Open end wrench ¦ 4-45-3 Pressure cap ¦ Teflon Tape or pipe sealant, optional * 1 Remove pressure control knob, (ref# 74) and pull P.C. stem, (ref# 77) out to the internal stop (1/16" to 1/8") thereby releasing hydraulic pressure. 2 Remove hydraulic return line, (ref# 72) from P.C. fitting, (ref# 81). 3 Place 11/16" wrench on P.C. seat, (ref# 87). Turn counter-clockwise to remove complete valve. 4 Place complete valve in vise and remove seat from body, (ref# 81). 5 Remove ball, (ref# 86), retainer, (ref# 85), and spring, (ref# 84) from body. Inspect ball for nicks or cuts and replace if damaged. Inspect seat at sealing edge, for signs of wear. A good condition seat will have a very small beveled at the sealing edge. The larger the bevel the more wear has taken place. Inspect retainer for wear. The retainer has a small locating hole in it. The hole should be flush or slightly beveled. The greater the wear on the ball, seat, and retainer the poorer the static pressure will be. Replace parts individually, or use repair kit, (ref# 88). 6 Hold P.C. body vertical. Place spring into body, place retainer onto spring. Ensure retainer fits completely over spring. Retainer should rest below end of body by approximately 1/4" to 3/8". Place ball onto retainer, ensuring ball is located on center hole. 7 Thread on seat, using care not to dislodge the ball from its position on the retainer. Tighten firmly. 8 Apply pipe dope or Teflon tape to exterior threads of seat. Install into elbow. Tighten to prevent leaks and return to original position. 9 Reattach hydraulic line. See "PURGING" instructions on page 19. H.E.R.O. INDUSTRIES 27 Model 3000 Owner’s Manual PISTON REPAIRS Tools or Supplies Required ¦ Vise ¦ Golf tee ¦ Grease ¦ 9/16 Open end wrench ¦ Pick or dental tool. ¦ H.E.R.O. hydraulic oil. ¦ 1/2 Socket ¦ Torque Wrench ¦ 4-45-3 Pressure cap ¦ Circlip pliers ¦ ¦ Three(3) per side Ref# 114 89 87 86 CB A 88 1. Remove hydraulic feed line, (ref# 63) from hydraulic intake valve, (ref# 62) and also remove hydraulic return line, (ref# 72) from the pressure control valve, (ref# 73). Plug lines to minimize oil loss. (Hint; golf tees work well for this) 2. Remove the bolts, (ref# 114) passing through the side frames, (ref# 110,111), into the crossblock, (ref# 60). 3. Place a drain tray under cylinder area. 4. Grasp the pump assembly, and pull away from the piston. Stop when piston pulls free, to allow the hydraulic oil to drain into pan. Completely remove pump assembly from between side frames. 5. If only replacing piston seals, (ref# 90) continue at step 15. 6. Remove the piston, (ref# 89) from eccentric bearing, (ref# 98). Move to clean work bench for repairs. H.E.R.O. INDUSTRIES 28 Model 3000 Owner’s Manual PISTON REPAIRS 7. Remove piston circlip...
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