Tuthill GlobalGear Series Installation And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Tuthill Manuals
  4. Water Pump
  5. GlobalGear Series
  6. Installation and service instructions manual

Tuthill GlobalGear Series Installation And Service Instructions Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Service Manual 73
Installation and Service
Instructions
GlobalGear Series Pumps

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GlobalGear Series and is the answer not in the manual?

Questions and answers

Related Manuals for Tuthill GlobalGear Series

Summary of Contents for Tuthill GlobalGear Series

  • Page 1 Service Manual 73 Installation and Service Instructions GlobalGear Series Pumps...

  • Page 2: Table Of Contents

    Illustrations used in this manual are for reference purposes only. Consult the factory or an authorized Tuthill distributor for proper part identification. When ordering replacement parts, provide as much detail as possible to ensure correct parts are provided.

  • Page 3: General Description/Pumping Principle

    The GG Series of pumps have a Modular Design concept. This allows for simplified maintenance of the pump and a broad range of flexibility on the design. For more information, consult the GG Series Catalog or your authorized Tuthill distributor. The GG Series of pumps allows for simplified repairs.

  • Page 4: Globalgear Models

    Service Manual 73 In-Line Seal replacement--- This allows for the replacement of the seals/packings without completely disassembling the pump. The GG series of pumps have bolt-on ports when furnished with a housing with a 90°porting arrangement.. This allows a broad range of flexibility for porting options in both size and configuration.

  • Page 5: Installation

    Vent all pressure within the pump through the suction or discharge lines. All Tuthill pumps contain residual hydraulic oil from the factory production test. Determine if this is compatible with the fluid you are pumping. If the fluid is incompatible, then the pump must be fully flushed prior to use.

  • Page 6: Simple Efficiency Improvement

    Service Manual 73 has not been supplied with the pump, some other means of pressure protection must be utilized. This could include in-line safety valves, pressure shutdown switches or other similar devices. Pumps shipped from the factory with relief valves have the relief valve set at full by-pass at the factory on 150SSU oil at our factory production test speeds.

  • Page 7: Lubrication Requirements

    Service Manual 73 Do not over-tighten. Packing is designed to keep leakage to a slight weep. Normally 2-3 drops per minute is acceptable. If excessive leakage persists after complete adjustment, consider re-packing the stuffing box or using another packing type. Lubrication Requirements Outer Bearing The standard outer bearings are maintenance-free.

  • Page 8: Parts Interchangeability

    Service Manual 73 Parts Interchangeability Ports Bearing Carrier Relief Valve Assembly Bearing Caps Rotor/Shaft Assembly Idler Bushing Ball Bearing Cover Housing Idler Gland Foot Seal PUMP SIZE PART NAME GG015 GG030 GG050 GG070 GG080 GG090 GG120 GG130 GG200 GG210 RELIEF VALVE ASSEMBLY HOUSING PORTS BRACKET / BUSHING ASSEMBLY...

  • Page 9: Inspection / Repair

    Failure to follow these instructions could result in serious bodily injury or death. Do not attempt to work on any Tuthill pump installation before completing the steps below. Only authorized personnel who are familiar with the repair of mechanical products should perform the necessary repair work.

  • Page 10: Drive Module Remova

    0.003 -0.009 0.089 -0.229 Table 3 - Idler Bushing Clearances Note: Many Tuthill pumps are provided with non-standard clearances for use with high- viscosity or high-temperature fluids. Consult the factory for clearances of these pumps. Drive Module Removal REMOVE THE DRIVE MODULE ASSEMBLY FROM HOUSING: If service is being completed with the housing still mounted to the baseplate/piping, you must first remove the spacer from the spacer coupling.

  • Page 11: Drive Module Installation

    Service Manual 73 The drive module assembly can then be pulled from the housing as a single unit. Caution should be used, as the drive modules can be heavy. The use of a lifting device may be required. Figure 3 - Back Pullout Drive Module Installation See Table 4 for proper torque specifications.

  • Page 12: Cover / Idler Gear Installation

    Service Manual 73 Install New Cover and Idler Gear See Table 4 for proper torque specifications. PLACE IDLER ASSEMBLY ON COVER: Once the idler is on the cover, ensure that it rotates freely. INSTALL COVER AND IDLER ASSEMBLY: Place the gasket on the cover. Tilt the top of the cover away from the pump until the crescent can be fitted into the rotor I.D.

  • Page 13: In-Line Seal / Packing Replacement

    Failure to follow these instructions could result in serious bodily injury or death. Do not attempt to work on any Tuthill pump installation before completing the steps below. Only authorized personnel who are familiar with the repair of mechanical products should perform the necessary repair work.
  • Page 14 Service Manual 73 Remove the outer bearing cap hex head bolts. Remove the bearing/bearing cap assembly. Note: If dirt or rust has gotten between the bearing carrier and the bearing cap, then the bearing/bearing cap assembly may be difficult to remove. REMOVE THE SEAL OR PACKING: A.
  • Page 15 Service Manual 73 C. Pumps with cartridge seal Consult the separate seal instructions provided by the seal manufacturer. INSTALL PACKING OR SEAL: A. Pumps with packing Install and seat each ring into the bracket stuffing box and stagger cut joints from one side of the shaft to the other.
  • Page 16 Service Manual 73 Place the seal head on the rotor shaft. A light lubricant will assist. Proper location of the seal is with the back portion against the collar. If the seal head has setscrews, tighten them once the seal head is properly located. Plug the access holes when finished with the ½...

  • Page 17: Pump Disassembly - Complete

    Failure to follow these instructions could result in serious bodily injury or death. Do not attempt to work on any Tuthill pump installation before completing the steps below. Only authorized personnel who are familiar with the repair of mechanical products should perform the necessary repair work.
  • Page 18 If only the bushing shows signs of minor wear, it should be replaced. Acceptable bushing clearances are shown in the Table 3 (for pumps with standard clearance only). Note: Many Tuthill pumps are provided with non-standard clearances for use with high- viscosity or high-temperature fluids. Consult the factory for clearances of these pumps.
  • Page 19 Service Manual 73 Remove the gland. Remove the packing. The rotor and bracket can now be separated. B. Pumps with single seal behind the rotor (In-Board location-see Figure 9): Remove the bracket. Remove the seal head from the shaft, directly behind the rotor head. Remove the in-board seal gland from inside the bracket.

  • Page 20: Pump Assembly

    0.003 -0.008 0.076-0.203 Table 4 - Bracket Bushing Clearances Note: Many Tuthill pumps are provided with non-standard clearances for use with high- viscosity or high-temperature fluids. Consult the factory for clearances of these pumps. REPLACEMENT PARTS Tuthill quality replacement parts are available through your authorized Tuthill distributor.

  • Page 21: Bracket Bushing Installation

    Service Manual 73 On idlers that use bronze bushings, there is a hole through the root diameter of one of the teeth. Use this hole to drill a hole through the bronze bushing. B. Tungsten carbide or high-temperature carbon bushings: Heat the idler gear evenly to about 400°F (204°C).

  • Page 22: Packing Installation

    A. Pumps with packing It is always good practice to install new packing during a complete rebuild. New packing sets are available from an authorized Tuthill distributor. Install and seat each ring into the bracket stuffing box and stagger cut joints from one side of the shaft to the other.

  • Page 23: In-Board Mechanical Seal Installation

    Service Manual 73 B. Pumps with single seal behind the rotor (In-Board location) See Figure 9. Bracket Access Hole Lip Seal Seal Inner Gland O-Ring Figure 9 – Single Seal in In-Board Location It is always recommended to replace the rotor if scoring is present on the shaft. If the old one is being reused, lightly polish the shaft, in order to remove minor defects.
  • Page 24 Service Manual 73 Bracket Access Hole Gland Collar Seal Figure 10 – Single Seal in Out-Board Location It is always recommended to replace the rotor if scoring is present on the shaft. If the old one is being reused, lightly polish the shaft, in order to remove minor defects. INSTALL THE LOCATING COLLAR (see Figure 7): Using a needle nose pliers (or similar tool), install the locating pin by inserting it through the hole in the bracket into the hole in the shaft.

  • Page 25: Drive Module Rebuild / Installation

    Service Manual 73 INSTALL THE GLAND Slide the gland o-ring and gland over the shaft and position it onto the studs on the bracket. Install the washers and nuts and tighten. FLUSH ARRANGEMENTS (see Figure 4) Note: The standard bracket for the GlobalGear pumps provides a vent to the seal chamber from suction port of the housing (see Figure 4).

  • Page 26: Cover / Idler Gear Installation

    Service Manual 73 Loosely fit the inner and outer bearing caps to the bearing carrier, using the bearing cap screws. DO NOT tighten the screws at this time. INSTALL DRIVE MODULE TO HOUSING: Place the gasket on the bracket. Slide the drive module into the housing and assemble with drive module bolts. Verify that the flush holes in the bracket are lined up with the appropriate hole in the housing.

  • Page 27: End Clearance Adjustment

    Service Manual 73 Adjustment of End Clearance BEARING CARRIER OUTER BEARING CAP SETSCREW GAP BETWEEN BEARING CARRIER AND OUTER BEARING CAP HEX HEAD BOLT Figure 11 – Setting End Clearance 1. Loosen the two setscrews on the outer bearing cap. 2.
  • Page 28 0.013 - 0.015 inch ( 0.254 - 0.381mm) Table 5 - End Clearance Values for standard clearances Note: Many Tuthill pumps are provided with non-standard clearances for use with high viscosity or high temperature fluids. Consult the factory for clearances of these pumps.

  • Page 29: Relief Valve Disassembly

    Service Manual 73 BONNET CAP GASKET SPRING GUIDE SPRING ADJUSTING SCREW POPPET JAM NUT BONNET GASKET BODY Figure 12 – Relief Valve Disassembly Of Relief Valve (See Figure 12): Note the valve position in relation to the housing and suction piping. Ensure that system pressure has been relieved and that the driver has been locked out prior to doing any service work.

  • Page 30: Troubleshooting

    Service Manual 73 2. Remove the adjusting screw cap and gasket to expose the adjusting screw. 3. Loosen the lock nut. 4. Start the pump running. 5. Slowly restrict the discharge line, while observing the pressure gage. Stop immediately if the pressure rises above a safe level.
  • Page 31 Service Manual 73 2. Problem: Capacity is too low. a. Air leaks in suction line. b. Suction losses are too high. The suction lift is too great or the suction line is too small or too long. This can be detected by installing a vacuum gauge directly at the pump suction. The maximum vacuum at the pump suction should never exceed 15”...

  • Page 32: Material Returns

    Material Safety Data Sheet (MSDS) has been forwarded to our Alsip plant and return of the pump approved. • Tuthill pumps are precision built and must be handled with care. • Pumps must be drained of all fluid and the ports plugged to prevent foreign material from getting into the pump.

This manual is also suitable for:

Gg015Gg030Gg050Gg070Gg080Gg090 ... Show all

Table of Contents

Save PDF