Dover TWG TULSA WINCH 506W Service Manual
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Dover TWG TULSA WINCH 506W Service Manual

Dover TWG TULSA WINCH 506W Service Manual

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TABLE OF CONTENTS

SAFETY NOTES .......................................................................................................................... 2
INTRODUCTION AND THEORY OF OPERATION ........................................................................ 3
HYDRAULIC SCHEMATIC ........................................................................................................... 4
MAINTENANCE AND SERVICE ................................................................................................... 5
WIRE ROPE ............................................................................................................................... 7
DISASSEMBLY ........................................................................................................................... 8
ASSEMBLY ................................................................................................................................. 9
SERVICING THE MOTOR ......................................................................................................... 10
SERVICING THE BRAKE ........................................................................................................... 11
SERVICING THE PLANETARY SET ........................................................................................... 13
TROUBLESHOOTING ............................................................................................................... 14
TORQUE SPECIFICATIONS CHART .......................................................................................... 14
BILL OF MATERIAL .................................................................................................................. 16
EXPLODED ISOMETRIC ASSEMBLY DRAWING ....................................................................... 18
SEL-0086-001
http://www.tulsawinch.com
REV 1 July 2020

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Summary of Contents for Dover TWG TULSA WINCH 506W

  • Page 1: Table Of Contents

    TABLE OF CONTENTS SAFETY NOTES .......................... 2 INTRODUCTION AND THEORY OF OPERATION ................ 3 HYDRAULIC SCHEMATIC ......................4 MAINTENANCE AND SERVICE ....................5 WIRE ROPE ..........................7 DISASSEMBLY ........................... 8 ASSEMBLY ..........................9 SERVICING THE MOTOR ......................10 SERVICING THE BRAKE ......................11 SERVICING THE PLANETARY SET ...................

  • Page 2: Safety Notes

    safety notes FAILURE TO HEED THE FOLLOWING WARNINGS MAY RESULT IN SERIOUS INJURY OR DEATH! • Operators must be trained in the proper, safe operation of the hoist. • Hoists are not to be used to lift, raise, or move people. If your task involves lifting or moving people, you must use the proper equipment, not this hoist.

  • Page 3: Introduction And Theory Of Operation

    INTRODUCTION AND THEORY OF OPERATION The planetary hoist is designed to utilize a geroler, gear, or piston motor, driving through a multiple- disc oil brake, through a planetary gearset to the cable drum. The multiple-disc oil brake is spring applied and hydraulically released through a port in the brake housing.

  • Page 4: Hydraulic Schematic

    HYDRAULIC SCHEMATIC...

  • Page 5: Maintenance And Service

    MAINTENANCE AND SERVICE For safe and consistent operation of TULSA WINCH hoists, swing drives, and winches, a regular program of preventive maintenance is strongly recommended. Regular oil changes with the correct oil for the ambient temperature conditions and an annual inspection of the wear components will help ensure a long life for your planetary geared products.
  • Page 6 RECOMMENDED OIL SAE 90W AGMA 4 EP MOBIL SHC 75W90 SAE 20W20 MOBIL 1 SYNTHETIC ATF MOBIL SHC 524 All oils must meet MIL-PRF2105E. Substitution from a reputable manufacturer is allowed as long as type and grade are maintained. OIL CAPACITY GEARBOX .75 QUART BRAKE...

  • Page 7: Wire Rope

    Gearbox oil is drained by rotating the drum so that the drain plug (Item 33) is visible through the (Item 50) (See Fig 1) lower hole in the side plate . Screw in a piece of 1" pipe to allow the oil to (See Fig.

  • Page 8: Disassembly

    DISASSEMBLY 1. Drain the oil from the gearbox and brake sections using the instructions on page 7. 2. Stand the hoist on its end with the motor pointing up. (Item 46) connected to the brake housing (Item 21) . Remove the motor 3.

  • Page 9: Assembly

    ASSEMBLY 1. Thoroughly clean all parts. Replace those that show wear or damage. (Item 5) 2. Inspect the drum for structural integrity and the gear teeth for excessive wear, then replace if necessary. (Item 32) (Item 50) (Item 62) 3. Attach the output shaft to the side plate with six capscrews (Item 30)

  • Page 10: Servicing The Motor

    SERVICING THE MOTOR (Item 46) (Item 42) 1. Remove the tube and counterbalance block from the motor assembly. (Item 25) (Item 42) 2. Remove the counterbalance valve from the block and inspect the small metering hole located on the side of the valve to make sure it is not obstructed. Also, inspect (Item 7-3) the o-ring for damage and replace if necessary.

  • Page 11: Servicing The Brake

    SERVICING THE BRAKE (Item 9) (Item 65) 1. Evenly remove the two capscrews and four nuts holding the brake cover (Item 20) in place. Spring pressure will raise the cover as the capscrews are loosened. Remove the cover from the brake housing. (Item 24) (Item 10) 2.
  • Page 12 (Item 24) 14. Install the springs into the spring pockets of the piston. If working in a horizontal position, coat the bottom of each spring with chassis lube to keep it in position. (Item 7-4) 15. Coat the new o-ring with light oil and install it into the groove on the brake cover (Item 20) (Item 20)

  • Page 13: Servicing The Planetary Set

    SERVICING THE PLANETARY SET 1. Remove the retaining rings from the planet pins. 2. Remove the pins from the carrier by carefully tapping them out. 3. Remove the planet gears, washers and bearings from the carrier. 4. Inspect the pins, bearings, and gear bores for evidence of wear and replace if necessary. 5.

  • Page 14: Troubleshooting

    TROUBLESHOOTING Hoist won’t hold load Possible Solutions: 1. There is excessive back pressure in the hydraulic system. Check the system for line restrictions and reduce the back pressure. 2. The brake discs are worn. Replace the brake discs. Friction discs should measure no less than 0.055 inches thick and the stator plates should measure at least 0.064 inches thick.
  • Page 15 Plated Lubricated Plated Lubricated Grade 5 Grade 5 Grade 5 Grade 8 Grade 8 Grade 8 Torque Torque Torque Torque Torque Torque Nominal Size *(Ft-Lbs) *(Ft-Lbs) *(Ft-Lbs) *(Ft-Lbs) *(Ft-Lbs) *(Ft-Lbs) 5/16 5/16 7/16 7/16 9/16 9/16 1019 1-1/8 1288 1-1/8 1444 1083 1-1/4...

  • Page 16: Bill Of Material

    BILL OF MATERIAL DESCRIPTION NOTES 42348 SIDE PLATE STANDARD COMPONENT 42835 SIDE PLATE FOR ASSEMBLY 81697001 24943 CAPSCREW 996546 RETAINING RING 4410 PLANET GEARSET 42377 CARRIER 30484 BEARING 42380 PLANET GEAR 28771 WASHER 41715 RETAINING RING 42184 PLANET PIN 44457 THRUST PLATE 42351 DRUM...
  • Page 17 42933 TUBING FOR ASSEMBLIES 81683001 AND 81693001 DESCRIPTION NOTES 42580 TUBING FOR ASSEMBLIES 81691001 AND 81697001 42123 HOSE ASSEMBLY FOR ASSEMBLIES 81692001 AND 82026001 41873 SWIVEL ADAPTER 42513 SIDE PLATE STANDARD COMPONENT 42349 SIDE PLATE FOR ASSEMBLIES 81683001 AND 81691001 42836 SIDE PLATE FOR ASSEMBLY 81697001...

  • Page 18: Exploded Isometric Assembly Drawing

    EXPLODED ISOMETRIC ASSEMBLY DRAWING PO Box 1130 Jenks OK 74037-1130 USA Phone: 918-298-8300 www.dovertwg.com...

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