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WORKMASTER GO-A8-PW Maintenance & Parts Manual

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GO-A8-PW Gate Opener
MAINTENANCE & PARTS
MANUAL

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Summary of Contents for WORKMASTER GO-A8-PW

  • Page 1 GO-A8-PW Gate Opener MAINTENANCE & PARTS MANUAL...
  • Page 2 The user of this product is responsible to install, maintain and operate the product and parts or components manufactured or supplied by WORKMASTER in such a manner as to comply with all federal, state and local rules, ordinances, regulations and laws, including the Williams-Steiger Occupational Safety Act, and the American National Standards Institute Safety Code.
  • Page 3 SYMBOLS The following symbols are found throughout this Operator's Guide to alert the reader to the relative danger that may result from non-observance. This indicates a situation in which a hazard is imminent and will result in a high probability of serious injury or death.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS SECTION PAGE Introduction Primary Components III. Frame Components Air Routing Components Wheel & Pivot Components ID & Caution Labels VII. Removing Impactor from Frame VIII. Disassembling the Impactor Parts Inspection Reassembling the Impactor Impactor Exploded View XII. Throttle Valve Exploded View XIII.

  • Page 5: Introduction

    I. INTRODUCTION Forward This manual contains important information to help you properly operate and maintain your Gate Opener for maximum performance, economy, and safety. We recommend that you study its contents thoroughly before repairing or performing maintenance. By carrying out the recommended maintenance and repair procedures you will experience long, dependable, and safe service.

  • Page 6: Primary Components

    II. PRIMARY COMPONENTS FRAME KIT Includes all components except Prepared Driver, Drive Fitting and Throttle Valve PN: 33-20052 DRIVE FITTING PN: 33-10013 Includes: RETAINER PIN PN: 32-50124 O-RING PN: 32-50000 PREPARED DRIVER PN: 33-20035 PH: 866.476.9217...

  • Page 7: Frame Components

    III. FRAME COMPONENTS FRAME ASSEMBLY PN: 33-20025 Includes: (1) Chasis; (1) Pivot Guard; (1) Tool Box; (2) Hub Sleeves FWD/REV LEVER PN: 33-20029 FOAM HANDLE SLEEVE PN: 33-20024 GROMMET PN: 33-20012 U-JOINT LEVER ASSEMBLY PN: 32-50014 COTTER PIN TOOL BOX PN: 33-20021 PN: 33-10105 HUB SLEEVE...

  • Page 8: Air Routing Components

    IV. AIR ROUTING COMPONENTS TEE FITTING PIPE NIPPLE PN: 72-07761 THROTTLE VALVE PN: 72-247L0 PN: 32-50015 FOAM GRIP FOAM GRIP PN: 33-20010 PN: 33-20010 STREET ELBOW PIPE CAP PN: 72-03661 PN: 72-16700 HOSE BARB INLET COUPLING PN: MS11 PN: AM12 AIR HOSE PN: 83-00101 HOSE CLAMP...

  • Page 9: Wheel & Pivot Components

    V. WHEEL & PIVOT COMPONENTS ELBOW* PN: 33-20067 THROTTLE HOSE ASSEMBLY* PN: 32-50016 BLACK POLY HOSE PN: 33-20040 YELLOW POLY HOSE PIVOT SWITCH* PN: 33-20050 PN: 33-20065 PUSH FITTING* PN: 33-20070 LOCK PIN PN: 33-10004 PIVOT CYLINDER* LANYARD PN: 33-20055 PN: 33-20022 CLEVIS BRACKET* GROMMET...

  • Page 10: Id & Caution Labels

    VI. ID & CAUTION LABELS PIVOT SWITCH LABEL PN: 33-20036 PIVOT LOCK PIN LABEL PN: 33-20017 CAUTION TAPE PN: 33-20049 FWD/REV LABEL PN: 33-20016 WARNINGS LABEL PN: 33-20047 MODEL NUMBER LABEL PN: 33-20020 NAMEPLATE PN: 33-20031 PH: 866.476.9217...

  • Page 11: Removing Impactor From Frame

    VII. REMOVING IMPACTOR FROM FRAME To service the Impactor, it is necessary to remove the Impactor from the Rolling Cart. The following Instructions cover the complete and correct method of performing this operation refer to SECTION XI: Impactor Exploded View. These Instructions detail complete repair of the Impactor and its component parts.
  • Page 12 Support the 125 lb. Impactor properly when removing it from the Frame. Failure to properly support the Impactor could result in injury. Remove the six (6) 5/16” Cap Screws, Lockwashers and Hex Nuts from the left and right Hub Sleeves. CAREFULLY remove Hub Sleeves, one at a time, from the Frame.

  • Page 13: Disassembling The Impactor

    VIII. DISASSEMBLING THE IMPACTOR To disassemble the Impactor refer to Section XI: Impactor Exploded View while completing the following steps: Remove six (6) Bolts [21] from Head Cover [33] and Motor Casing [20]. Separate Head Cover [33] from Motor Casing [20]. Remove eight (8) Bolts [2] from Hammer Casing [1] and Motor Casing [20].
  • Page 14 It may be necessary to apply heat to the Reverse Lever [36] as Locktite adhesive is used to secure the Reverse Lever Set Screw [39]. IMPORTANT Remove Reverse Valve Cover [34] from Head Cover [33] (heat may need to be applied). Reverse Valve [35] can only be removed from Reverse Valve Bushing [41] in one direction.

  • Page 15: Parts Inspection

    IX. PARTS INSPECTION When the GO-A8-PW Opener is in-for-maintenance and the Rolling Cart and Impactor have been disassembled (partial or complete), the components should be cleaned and inspected for wear before lubricating and reassembly of the Opener. Proper maintenance of equipment often depends upon the ability of a service technician to determine whether a part or assembly is worn to the point where it should be replaced.
  • Page 16 Installation of an air filter/dryer in the air supply line is the best method for reducing grooving and scoring of the cylinder. PN: 82-10420 is recommended. IMPORTANT A badly scored Cylinder cannot be restored to usefulness by honing. Enlarging the inside diameter widens the seal point between the Rotor and Cylinder to a degree that will hinder the operation of the motor and will result in loss of speed and power.
  • Page 17 The CYLINDER PLATE BEARINGS [25] provide a low friction support medium for the Rotor. To check the condition of a Bearing, hold the inner race and rotate the outer race by hand. If rough movement or substantial side play are detected, replace the Bearing. It is also possible to compare a used Bearing with a new one to detect the amount of wear.
  • Page 18 After the parts have been cleaned, inspected or, when needed, replaced, they should be wiped down with high quality air tool oil like WORKMASTER Tool Lube (PN: 36-21010) used in the Lubricator. The addition of the oil leaves a rust or moisture preventive film on the parts.
  • Page 19 The TWIN HAMMER MECHANISM of the Impactor is a highly effective design that delivers more power per pound and is less sensitive to air pressure fluctuations than any other design. Two Hammers strike instantaneous balanced blows to the Anvil's lobes generating powerful torque with minimal vibration.

  • Page 20: Reassembling The Impactor

    X. REASSEMBLING THE IMPACTOR Once the Impactor's internal components have been inspected, repaired or replaced, the Impactor can be reassembled. The reassembly of the Impactor is essentially the disassembly instructions in reverse order. Refer to Section XI: Impactor Exploded View during reassembly.
  • Page 21 Before installing Impactor into Cart Frame, operate Impactor for a short period (3 to 5 minutes) of time to test for proper operation. Check the free speed at the Anvil [10] with a tachometer. Speed is 1500 RPM (approx.) at 85 PSI using 150 CFM (approx.). Never substitute wire, nails, welding rod, etc for retaining pins or fasteners because they are dangerous if thrown from the unit at free...

  • Page 22: Impactor Exploded View

    XI. IMPACTOR EXPLODED VIEW PH: 866.476.9217...
  • Page 23 PARTS LIST Item Item Part# Description Part# Description 33-20123 Hammer Casing 33-20154 Cylinder Plate Bearing 33-20140 Half Head Bolt 33-20118 Cylinder Plate 33-20143 Spring Washer 33-20120 Rotor 33-20134 Eyebolt 33-20121 Rotor Blade 33-20171 Name Plate 33-20119 Cylinder 33-20172 Fasteners for Name Plate 33-20150 Roll Pin 33-20136...

  • Page 24: Throttle Valve Exploded View

    XII. THROTTLE VALVE EXPLODED VIEW Assembly Part #32-50015 Item Part# Description 33-20148 Roll Pin 33-20109 Throttle Trigger 33-20114 Valve Body Pipe 33-20116 Valve Body Nut 33-20107 Valve Body 33-20108 Valve 33-20137 Packing 33-20110 Valve Packing Spacer 33-20141 Screw 33-20147 Cone Spring 33-20111 Valve Cover PH: 866.476.9217...

  • Page 25: Fasteners

    XIII. FASTENERS PART # DESCRIPTION WHERE USED 75-30300 Hex Nut; 3/8-16 75-90300 Lock Washer; 3/8" 75-10304 HHCS; 3/8-16 x 1"L 75-OH100 IT Lock Washer; #10 7A-BB106 PPHMS; 10-24 x 1-1/2"L 75-5B100 ESN; 10-24 75-30200 Hex Nut; 5/16-18 75-90200 Lock Washer; 5/16" 75-10204 HHCS;...

  • Page 26: Lubricator Components

    XIV. LUBRICATOR COMPONENTS* Only applicable to units purchased before 2017 AIR OUT AIR IN ITEM # PART # DESCRIPTION 82-40004-1 Pressure Relief Fill Cap 82-40004-2 Sight Disk 82-40004-3 Sight Disk Lock Nut 82-40004-4 Sight Disk Seal 82-40004-5 Oil Adjusting Valve Assy 82-40004-6 O-Ring f/ Fill Plug 82-40004-7...

  • Page 27: Kits & Assemblies

    XV. KITS & ASSEMBLIES Rebuild Kit f/ GO-A8 & GO-A13 (PN: 32-50010) Item # Part # Description 10-00075 Rebuild Kit Manual 33-20121 Rotor Blade 33-20136 Front Gasket 33-20135 Rear Gasket PH: 866.476.9217...
  • Page 28 Repair Kit f/ GO-A8 & GO-A13 (PN: 32-50020) Item # Part # Description 10-00075 Rebuild Kit Manual 33-20121 Rotor Blade 33-20136 Front Gasket 33-20154 Cylinder Plate Bearing 33-20155 Anvil Cone Bearing 33-20135 Rear Gasket 33-10605 Grease, 13.7 oz PH: 866.476.9217...
  • Page 29 F/R Lever Assembly (PN: 32-50014) Item # Part # Description 33-20175 F/R Lever 33-20145 Spring 33-20153 Ball 33-20106 Set Screw PH: 866.476.9217...
  • Page 30 Head Cover Assembly f/ GO-A8-FW & GO-A8-PW (PN: 32-50025) Item Part# Description 33-20101 Head Cover 33-20105 Reverse Valve Cover 33-20102 Reverse Valve 33-20175 F/R Lever 33-20145 Spring 33-20153 Steel Ball 33-20106 Reverse Lever Set Screw 33-20149 Roll Pin 33-20103 Reverse Valve Bushing...
  • Page 31 NOTES...
  • Page 32 Pocket Vibrator Opening a hopper car gate presents one set of problems, getting material to flow from the car presents an entirely different problem. But it is no problem with the WORKMASTER air Rail-Shaker driven wedge-mount pocket vibrator. The assembly's wedge-...

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