Graco Dyna-Star 236-753 Instructions And Parts List
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Graco Dyna-Star 236-753 Instructions And Parts List

Graco Dyna-Star 236-753 Instructions And Parts List

Hydraulic reciprocator & pump
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INSTRUCTIONS-PARTS LIST
Dyna-Star
HYDRAULIC RECIPROCATOR & PUMP
1500 psi (105 bar) MAXIMUM HYDRAULIC INPUT PRESSURE
375 psi (26 bar MAXIMUM FLUID OUTLET PRESSURE
1/4:1 RATIO UNIVERSAL PUMP & RECIPROCATOR
Model 236-753, Series A, Stubby Length
RECIPROCATOR
ONLY
Model 236-751, Series A
WARNING
The pump is designed to dispense lube products
only. Any other fluids can cause unsafe operating
conditions and result in component rupture, fire or
explosion which could cause serious injury, includ-
ing fluid injection.
Patent No. 4,383,475
Foreign Patents Pending
Patent 1984 Canada
Brevete 1984

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GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
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COPYRIGHT 1994, GRACO INC.
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308-390
Model 236-753 shown
Rev. A

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Summary of Contents for Graco Dyna-Star 236-753

  • Page 1: Table Of Contents

    Graco Phone Numbers ......GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1994, GRACO INC.

  • Page 2: Warnings

    WARNINGS High Pressure Spray Can Cause Serious Injury. For Professional Use Only. Observe All Warnings. Read and understand all instruction manuals before operating equipment. FLUID INJECTION HAZARD General Safety Pressure Relief Procedure The hydraulic reciprocator and pump can generate high To reduce the risk of serious injury, including fluid fluid pressure.

  • Page 3: Terms

    High pressure fluid can dislodge a loose coupling or allow are not compatible with the inner tube and cover of the high pressure spray to be emitted from the hose. Do not expose Graco hose to temperatures above coupling. 180 F (82 C) or below –40 F (–40 C).

  • Page 4: Typical Installation

    Typical Installation – Suction Feed System Hydraulic Fluid Control, 236–864 Return Line Shutoff Valve Hydraulic Supply Line (Use only (See Manual 308–395) Hydraulic Inlet, 3/8 npt GRACO hydraulic power supply) Porous Plug (Weep tube optional) Hydraulic Supply Line Shutoff Material Supply Fluid Dispenser Outlet Valve...
  • Page 5 Installation NOTE: Refer to the Typical Installation to locate the parts Hydraulic Components mentioned below. CAUTION WARNING Keep The Hydraulic System Clean Always turn off the hydraulic supply side valve (K, The hydraulic supply system must be kept clean at Fig 1) first to avoid possible serious injury or compo- all times to reduce the risk of damaging the recipro- nent damage.

  • Page 6: Operation

    Maximum Working Pressures Recommended Hydraulic Oil To reduce the risk of serious bodily injury including Use Graco-approved Hydraulic Oil or a premium, fluid injection and splashing in the eyes or on the ISO grade 46 petroleum-based hydraulic oil con- skin, which may be caused if a component taining rust and oxidation inhibitors and anti–wear...
  • Page 7 Operation WARNING Pressure Relief Procedure SELF–SEALING FIT- To reduce the risk of serious bodily injury, including TING (16, 17, 25) fluid injection, injury from moving parts, and splashing in the eyes or on the skin, always follow this procedure whenever you shut of f the pump, when checking or servicing any part of the dispens- ing system, when installing, cleaning or changing dispensing valve nozzles, and whenever you stop...
  • Page 8 Notes...

  • Page 9: Troubleshooting

    Troubleshooting Guide WARNING Pressure Relief Procedure To reduce the risk of serious bodily injury , including 3. Place a container under the drain valve to catch fluid injection, injury from moving parts, and splashing any drainage. Open the pump outlet drain valve. in the eyes or on the skin, always follow this procedure whenever you shut of f the pump, when checking or 4.

  • Page 10: Service

    Service Replacing Base Packing in Reciprocator. Disconnecting Reciprocator and Displacement Pump and Replacing Throat Seals. See Fig 4. Fig 3. NOTE: Replace these seals if fluid leaks excessively through the porous plug (107), see Fig 4. This procedure can be done without disassembling the entire recipro- 7, 6 cator.
  • Page 11 CAUTION 2. Follow the Pressure Relief Procedure Warning, Keep The Hydraulic System Clean on page 9. It is essential to keep the hydraulic oil system clean and free of contaminants to reduce the risk of dam- 3. Disconnect the outlet hose from the displacement aging the hydraulic reciprocator .

  • Page 12: Reciprocator Repair

    Reciprocator Repair NOTE 1: Clean and inspect all parts for wear or dam- 3. Remove the four capscrews (24) and the retainer age. Replace parts as needed. For the best housing (56). Tap the retainer housing with a plas- results, always replace all the o–rings and tic mallet to loosen it and pull it off the bottom cap seals when you disassemble the pump.
  • Page 13 Reciprocator Repair 9. Inspect the guide clamp (30) for wear or damage. 14,33,27 If replacement is necessary, remove the screw (15) from the rod (40). Replace damaged parts and the trip rod guides (29). Thoroughly clean any adhesive residue from the screw (15) and the in- ternal threads of the rod (40).
  • Page 14 Reciprocator Repair ASSEMBLY A TOOL 181–619 ASSEMBLY B UPPER DETENT HOLES SLIDE CURVED ENDS INTO GROOVE OF VALVE SLEEVE (32) Fig. 8 14. See Fig 8. Lay Assembly A and Assembly B on 17. Place your thumbs on the valve stop (44), grasp the workbench.
  • Page 15 Reciprocator Repair Refer to Fig 10 for Steps 18–24. 14,33.27 18. If the tie rods (49) were removed, reinstall them with the short threaded end up. The other end should be screwed about 9/16” into the bottom cyl- inder cap (47). NOTE 3: When reinstalling the cylinder (39) (Step 20), be sure the “P”...
  • Page 16 Notes...

  • Page 17: Displacement Pump Repair

    Displacement Pump Repair Intake Valve. See Fig 10. 1. If possible, flush the pump. Follow the Pressure Relief Procedure Warning on page 9. 2. Unscrew the valve body (119). Remove the o–ring (108), ball (106) and retainer (120). 3. Inspect the parts for wear or damage. If the ball is nicked, replace it.
  • Page 18 Notes...

  • Page 19: Parts List & Drawing Universal 1/4:1 Ratio Displacement Pump

    Model 236–753 1/4:1 Ratio Pump – Parts NO. PART NO. DESCRIPTION NO. PART NO. DESCRIPTION 101 236–751 RECIPROCATOR, hydr, Dyna-Star 1 116 189–706 ROD, piston see parts on page 20 117 189–707 SEAT, valve 103 100–133 WASHER, lock; 3/8 118 189–708 CYLINDER, pump 104 101–178* BALL, metallic...

  • Page 20: Reciprocator

    Hydraulic Reciprocator – Parts MODEL 236–751, Series A Hydraulic Reciprocator NOTE: See pages 10 to 15 for Includes items 5 to 57 important assembly procedures and torque values.
  • Page 21 Hydraulic Reciprocator – Parts USE ONLY GENUINE GRACO PARTS AND ACCESSORIES MODEL 236–751, Series A Hydraulic Reciprocator NO. PART NO. DESCRIPTION NO. PART NO. DESCRIPTION 100–069 BALL 36 178–189 SPRING, compression 100–133 WASHER, lock 37 178–207 BEARING, piston 100–307 NUT, full , hex; 3/8–16 unc-2b 38 178–226...

  • Page 22: Accessories

    Accessories USE ONLY GENUINE GRACO PARTS AND ACCESSORIES MUST BE PURCHASED SEP ARATELY. WALL BRACKET 236–778 GROUNDING CLAMP 103–538 Provides support to mount the 1/4:1 Dyna-Star on a wall. GROUNDING WIRE 208–950 25 ft (7.6 m) long ASSEMBLY TOOL 181–619 REPAIR KIT 236–861...

  • Page 23: Technical Data

    Technical Data Fluid Ratio ............1/4:1 Output Flow (Max) .

  • Page 24: Warranty

    Graco’s written recommendations. This warranty does not cover , and Graco shall not be liable for , any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper mainte- nance, negligence, accident, tampering, or substitution of non–Graco component parts.

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