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Graco 965768 manual

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Table of contents for the manual

  • Page 1

    AIR OPERA TED, SINGLE COMPONENT DISPENSE V AL VE 1K Ultra–Lite t For dispensing a wide variety of single component sealants and adhesives. 4000 psi (28 MPa, 276 bar) Maximum Fluid Working Pressure 120 psi (0.84 MPa, 8.4 bar) Maximum Air Inlet Pressure See page 2 for T able of Contents Part No. 965766 Stainless Steel Wetted Parts, Machine Mount V [...]

  • Page 2

    2 308876 T able of Contents W arnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation/Maintenance 8 . . . . . . . . . . . . . . . . . [...]

  • Page 3

    3 308876 W ARNING INSTRUCTIONS EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury . D This equipment is for professional use only . D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are uncert[...]

  • Page 4

    4 308876 W ARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury . D Ground the equipment and the object being sprayed. Refer to Grounding on page 6. D If there is any static sparking or you feel an electric shock while using [...]

  • Page 5

    5 308876 Features Fig. 1 8374 A 4 Control Configurations 1. 1/8 npt(f) ported manifold block 2. Direct solenoid mount with speed control 3. Handle kit with 4-way air valve 4. Handle kit with electric switch Accessory flow control fittings to adjust open/close speed. Shaft is free to align Aluminum or stainless wetted housings Snuff back restrictor [...]

  • Page 6

    6 308876 Installation NOTES: D Reference numbers and letters in parentheses in the text refer to the callouts in the figures and drawings. D Accessories are available from your Graco representative. If you supply your own accessories, be sure they are adequately sized and pressure-rated to meet the system’s requirements. Grounding W ARNING FIRE A[...]

  • Page 7

    7 308876 Installation Connections D The fluid inlet is 1/4 npt(f). D The fluid outlet is 1/4 npt(f) or 3/4–16 unf(m). D Air inlets are 1/8 npt(f). D See Accessories , page 25, to order air control valves and tubing. Electric Switch Hand Held V alve Install a remote 4-way air control valve to operate the valve. Connect an OPEN air signal air line [...]

  • Page 8

    8 308876 Operation W ARNING COMPONENT RUPTURE HAZARD T o reduce the risk of over-pressurization, which can cause component rupture and serious injury , never exceed 3000 psi (21 MPa, 207 bar) fluid pressure, or 120 psi (0.84 MPa, 8.4 bar) air pressure to the valve. Pressure Relief Procedure W ARNING The system pressure must be manually relieved to [...]

  • Page 9

    9 308876 Operation Air Switch Hand Held V alve The valve operation is such that there are only two valve conditions: either fully open or fully closed. The valve is opened and closed by the internal air control valve. Trigger the gun to open the valve. Release the trigger to close the valve. Shaft Stroke Adjustment (Models 965766, 965767, 965768, a[...]

  • Page 10

    10 308876 T roubleshooting W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8. SKIN INJECTION HAZARD 1. Relieve the pressure. 2. Check all possible causes to the problem before disassembling the pump. PROBLEM CAUSE SOLUTION V alve does not open Insuff[...]

  • Page 11

    11 308876 Service (Models 965766, 965767, 965768, and 965786 only) W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8. SKIN INJECTION HAZARD Disassembly 1. Relieve all air and fluid pressure . 2. Disconnect the valve from the system. 3. Remove the fou[...]

  • Page 12

    12 308876 Service (Models 965766, 965767, 965768, and 965786 only) Reassembly Air Cylinder Section 1. Lubricate the shaft o-rings (4) and the bearings (5) with grease supplied in the repair kit. Insert o-rings into the air cylinder (1) and air cap (1 1) cavities. See Fig. 5. 2. Press the bearings (5) flush into the air cylinder housing and air cap,[...]

  • Page 13

    13 308876 Service (Models 965766, 965767, 965768, and 965786 only) Air V alve (if equipped) 1. Insert the spring (51) into the housing (50). 2. Lubricate and install an o-ring (46) into the housing. 3. Install a spacer (52), internal bevel first, into the housing. 4. Lubricate and install two o-rings (46) and the spacer (51). 5. Lubricate and insta[...]

  • Page 14

    14 308876 Service (Models 965766, 965767, 965768, and 965786 only) 8371A 29 10 16 6 5 3 4 28, 29 20 21 22 39 41 23 40 38 25 27 Fig. 5 1 3 4 2 26 19 18 1 12 11 30 56 61 60 53 54 55 46 47 48 49 51 52 58 59 57 50 8370A T ighten to 15–20 in-lb (1.7–2.2 N S m). The shaft should hang with some play to be self-aligning in the bearing. Tighten to 15–[...]

  • Page 15

    15 308876 Notes[...]

  • Page 16

    16 308876 Parts (Models 965766, 965767, 965768, and 965786 only) 8371A 1 19 18 26 30 12 2 (965766 & 965786 only) 9 10 16 11 7 6 5 3 4 28, 29 20 21 22 39 41 23 40 15 38 25 27 42 43 44 15[...]

  • Page 17

    17 308876 Parts Model 965766 Machine Mount V alve Stainless steel wetted parts Model 965786 Automatic Machine Mount V alve Aluminum wetted parts Model 243482 Orbiter Mounted V alve Stainless steel wetted parts Model 243666 PrecisionFlo Control V alve Stainless steel wetted parts Ref. No. Part No. Description Qty . 1 626702 HOUSING, air cylinder 1 2[...]

  • Page 18

    18 308876 Parts 8372A 8370A 63 46 48 49 51 52 58 59 57 50 (965768 only) (965767 only) 47 8375B 61 60 53 54 55 56[...]

  • Page 19

    19 308876 Service (Models 243482 and 243666 only) W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8. SKIN INJECTION HAZARD Disassembly 1. Relieve all air and fluid pressure . 2. Disconnect the valve from the system. 3. Remove the four nosepiece screw[...]

  • Page 20

    20 308876 Service (Models 243482 and 243666 only) Reassembly Air Cylinder Section 1. Lubricate the shaft o-rings (4) and the bearings (5) with grease supplied in the repair kit. Insert o-rings into the air cylinder (1) and air cap (1 1) cavities. See Fig. 5. 2. Press the bearings (5) flush into the air cylinder housing and air cap, trapping the o-r[...]

  • Page 21

    21 308876 Parts (Models 243482 and 243666 only) 29 10 16 6 5 3 4 28, 29 20 21 22 39 23 40 15 38 25 27 Fig. 6 1 26 19 18 12 30 T ighten oppositely and evenly to 40–45 in-lbs (4.5–5 N S m). Lubricate with grease supplied in the repair kit. Tighten to 15–20 in lbs (17–22 N S m) Apply Loctite Primer N7649 and Loctite TL242, 243, or equivalent ([...]

  • Page 22

    22 308876 Parts (Models 243482 and 243666 only) 8371A 1 19 18 26 30 12 9 10 16 19 7 6 5 3 4 28, 29 20 21 22 39 41 23 40 31 38 25 27 45 31 Model 243482 40[...]

  • Page 23

    23 308876 Parts Model 965767 Hand Held V alve with Pneumatic T rigger Aluminum wetted parts See page 16 for illustration of items 1–44. See page 18 for illustration of items 46–62. Ref. No. Part No. Description Qty . 1 626702 HOUSING, air cylinder 1 3 626068 SHAFT , air cylinder 1 4* 156454 O-RING, 010 buna-n 2 5* 551 181 BEARING, air cylinder [...]

  • Page 24

    24 308876 Parts Model 965768 Hand Held V alve with Electric Switch Aluminum wetted parts See page 16 for illustration of items 1–44. See page 18 for illustration of items 53–63. Ref. No. Part No. Description Qty . 1 626702 HOUSING, air cylinder 1 3 626068 SHAFT , air cylinder 1 4* 156454 O-RING, 010 buna-n 2 5* 551 181 BEARING, air cylinder 2 6[...]

  • Page 25

    25 308876 Accessories Plastic T ube Fittings to Connect Air Signals T ube OD 1/8 NPT (M) Straight 1/8 NPT (M) 90º Swivel T ube T ee 1/8 in. 5/32 in. 1/4 in. 598329 104172 513826 598140 597151 551203 514435 1111 6 7 T ube OD 1/4 NPT (M) Straight 1/4 NPT (M) 90º Swivel 5/32 in. 1/4 in. 598252 104165 598327 C19391 Plastic T ubing for Air Signal Line[...]

  • Page 26

    26 308876 Accessories Fluid Nozzles Zinc-plated steel nozzles, 1/8 npt* Part No. Orifice Length 607665 0.125 in. (3.17 mm) 2 in. (51 mm) 161505 0.09 in. (2.28 mm) 2 in. (51 mm) 164799 0.055 in. (1.39 mm) 2-1/8 in. (54 mm) * Requires a 1/8 npt(f) bushing. Order 168683 Nozzle Bushing. 8462A Nozzles for use with 188253 flange nut. Part No. Orifice Len[...]

  • Page 27

    27 308876 T echnical Data Category Data Maximum Fluid Pressure 4000 psi (28 MPa, 276 bar) Maximum Cylinder Air Pressure 120 psi (0.84 MPa, 8.4 bar) Air inlets (open and close ports) 1/8 npt(f) Fluid Inlet 1/4 npt(f) Fluid Outlet 1/4 npt(f) and 3/4–16 unf(m) Fluid Viscosity Range 20 cps to 1 million cps Snuffer Action Fluid Section Isolation chamb[...]

  • Page 28

    28 308876 Dimensions 6.13 in. (155.7 mm) 8370A 1.75 in. (44.45 mm) 2.25 in. (57.15 mm) Direct Mount Solenoid (optional) 2.25 in. (57.15 mm) 0.88 in. (22.35 mm) 1.75 in. (44.45 mm) 1.42 in. (36.07 mm) 3.5 in. (88.9 mm) 1.63 in. (41.4 mm) 5 in. (127 mm)[...]

  • Page 29

    29 308876 Notes[...]

  • Page 30

    30 308876 Graco Standard W arranty Graco w arrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco w ill, for a period of twelve months from th[...]