Hyster S4.0FT Manual
  1. Manuals
  2. Brands
  3. Hyster Manuals
  4. Control Unit
  5. Fortis S40FT
  6. Manual
Hyster S4.0FT Manual

Hyster S4.0FT Manual

Main control valve with variable displacement pump
Hide thumbs Also See for S4.0FT:
Table of Contents

Advertisement

Quick Links

Hyster U005 (H80FT, H90FT, H100FT, H110FT,
H120FT) Forklift Service Repair Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the S4.0FT and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Hyster S4.0FT

Summary of Contents for Hyster S4.0FT

  • Page 1 Hyster U005 (H80FT, H90FT, H100FT, H110FT, H120FT) Forklift Service Repair Manual...
  • Page 2 MAIN CONTROL VALVE WITH VARIABLE DISPLACEMENT PUMP S4.0FT, 4.5FT, 5.5FT, S5.5FTS (S80, 100, 120FT; S80, 100FTBCS; S120FTS; S120FTPRS) [J004]; H4.0FT5/FT6; H4.5FTS5, H4.5FT6; H5.0-5.5FT (H80, 90, 100, 110, H120FT) [U005] PART NO. 4128559 2000 SRM 1899...
  • Page 3 • Keep the tools clean and in good condition. • Always use HYSTER APPROVED parts when making repairs. Replacement parts must meet or ex- ceed the specifications of the original equipment manufacturer. • Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to remove parts.

  • Page 4: Table Of Contents

    Install ................................16 Install .................................16 Pressure Relief Valve Check and Adjustment .....................20 General ................................20 Secondary Relief Valve ............................. 20 Steering Control Unit Repair ..........................22 Remove ................................22 Disassemble ...............................22 Clean ..................................26 Inspect ................................26 Assemble ................................26 ©2015 HYSTER COMPANY...
  • Page 5 Assemble ............................... 28 Accumulator Replacement ............................ 29 Remove ................................29 Install .................................30 This section is for the following models: S4.0FT, 4.5FT, 5.5FT, S5.5FTS (S80, 100, 120FT; S80, 100FTBCS; S120FTS; S120FTPRS) [J004]; H4.0FT5/FT6; H4.5FTS5, H4.5FT6; H5.0-5.5FT (H80, 90, 100, 110, H120FT) [U005]...
  • Page 6 Thanks very much for your reading, Want to get more information, Please click here, Then get the complete manual NOTE: If there is no response to click on the link above, please download the PDF document first, and then click on it. Have any questions please write to me: admin@servicemanualperfect.com...

  • Page 7: General

    2000 SRM 1899 General General This section contains a description and repair The E-Valve with variable displacement pump procedures for a electro-hydraulic main control (VDP) is electronically-controlled, closed-center, valve with variable displacement pump used in the single function compensated, and utilizes parallel hydraulic system for this series of lift trucks.
  • Page 8 General 2000 SRM 1899 NOTE: FOUR FUNCTION CONTROL VALVE SHOWN. 1. STEERING CONTROL UNIT (SCU) 7. SECONDARY RELIEF VALVE 2. SCU MOUNTING CAPSCREW 8. AUXILIARY I SECTION 3. CLIPPER RELIEF VALVE WITH TAMPER 9. AUXILIARY II SECTION PROOF CAP 10. ACCUMULATOR PORT 4.

  • Page 9: Main Control Valve Repair

    2000 SRM 1899 Main Control Valve Repair Main Control Valve Repair REMOVE 5. To remove the accelerator pedal or MONO- ® TROL pedal assembly, disconnect the cowl wiring harness from the pedal assembly wiring WARNING harness and remove three mounting capscrews. Lower carriage completely before working on con- See Figure 3.
  • Page 10 Main Control Valve Repair 2000 SRM 1899 7. Disconnect hydraulic hoses from the control CAUTION valve. See Figure 4. Install plugs or caps on all open hose ends and control valve ports to pre- To prevent any foreign matter from getting into ei- vent contamination.

  • Page 11: Main Control Valve Sections

    2000 SRM 1899 Main Control Valve Repair 12. Remove the main control valve from cowl. WARNING MAIN CONTROL VALVE SECTIONS The main control valve weighs approximately 30.5 kg (67 lb). Use a lifting device capable of lift- General ing the main control valve to avoid the possibility of injury to personnel.
  • Page 12 Main Control Valve Repair 2000 SRM 1899 3. While holding the adjustment nut, loosen the 5. Remove the spring, washer, and poppet from jam nut. the secondary relief valve plug. NOTE: While performing Step 4, count and note 6. Remove secondary relief valve plug from outlet the number of turns used to remove the adjusting control valve section.

  • Page 13: Clean

    2000 SRM 1899 Main Control Valve Repair Clean 1. Install a new backup ring on the secondary re- lief valve plug. See Figure 6. WARNING 2. Install the poppet, washer, and spring into the secondary relief valve plug. Cleaning solvents can be flammable and toxic and can cause skin irritation.
  • Page 14 Main Control Valve Repair 2000 SRM 1899 Figure 7. Auxiliary I and II Control Valve Sections...

  • Page 15: Disassemble

    2000 SRM 1899 Main Control Valve Repair Legend for Figure 7 A. AUXILIARY I CONTROL VALVE SECTION B. AUXILIARY II CONTROL VALVE SECTION 1. PLUG 7. SPOOL 2. O-RING 8. POPPET 3. SPRING 9. AUXILIARY I CONTROL VALVE BODY 4. WASHER 10.

  • Page 16: Assemble

    Main Control Valve Repair 2000 SRM 1899 Assemble 5. Install the outlet control valve section. See Out- let Control Valve Section, Install. NOTE: Coat all backup rings and O-rings with a light coat of clean hydraulic oil to make installation 6.

  • Page 17: Clean

    2000 SRM 1899 Main Control Valve Repair Clean Wear protective goggles or a face shield to pre- vent injury to the eyes. WARNING 1. If all components of the tilt control valve sec- tion have been removed, clean the tilt control Cleaning solvents can be flammable and toxic and valve section and components, except the two can cause skin irritation.

  • Page 18: Inspect

    Main Control Valve Repair 2000 SRM 1899 Inspect 3. Install the auxiliary I and II (if equipped) con- trol valve sections. See Auxiliary Control Valve Inspect the tilt control valve section mating surfa- Section, Install. ces and any open bores for damage. If damage is 4.

  • Page 19: Clean

    2000 SRM 1899 Main Control Valve Repair 4. Remove the socket head plug, spring, and WARNING washer from top of lift/lower control valve sec- tion. Remove and discard O-ring from plug. See Compressed air can move particles so they cause Figure 9.

  • Page 20: Inspect

    Main Control Valve Repair 2000 SRM 1899 Inspect 4. Install the auxiliary control valve section. See Auxiliary Control Valve Section, Install. Inspect the lift/lower control valve section mating 5. Install the outlet control valve section. See Out- surfaces and any open bores for damage. If damage let Control Valve Section, Install.

  • Page 21: Inspect

    2000 SRM 1899 Main Control Valve Repair Inspect NOTE: If the transition control valve section is not to be reassembled immediately, coat surfaces with Inspect the transition control valve section mating clean hydraulic oil to prevent the possibility of rust. surfaces and any open bores for damage.

  • Page 22: Assemble

    Main Control Valve Repair 2000 SRM 1899 Assemble 2. Install three inserts into holes on cowl where the control valve will be mounted. While sup- porting the main control valve in place on the CAUTION cowl, install three mounting capscrews and The transition section is equipped with a clipper washers through the front of the cowl into the relief valve.
  • Page 23 2000 SRM 1899 Main Control Valve Repair NOTE: FOUR FUNCTION CONTROL VALVE SHOWN. 1. STEERING CONTROL UNIT (SCU) 8. AUXILIARY I SECTION 2. SCU MOUNTING CAPSCREW 9. AUXILIARY II SECTION 3. CLIPPER RELIEF VALVE 10. ACCUMULATOR PORT 4. LIFT/LOWER SECTION 11.
  • Page 24 PPRV solenoids as noted during removal. 7. Apply adhesive compound, (Hyster 251099), to the three mounting capscrews. Us- ing the three capscrews that hold the throttle base to the cowl, install the pedal assembly on the lift truck. Connect the cowl wiring harness to the pedal assembly wiring harness.
  • Page 25 2000 SRM 1899 Main Control Valve Repair 1. STEERING SYSTEM HOSES 9. AUXILIARY I HOSE 2. HYDRAULIC INLET HOSE 10. AUXILIARY II HOSE 3. STEERING CONTROL UNIT (SCU) 11. ACCUMULATOR 4. STEERING COLUMN SHAFT 12. RETURN HOSE 5. SCU MOUNTING CAPSCREWS 13.

This manual is also suitable for:

S4.5ftS5.5ftS5.5ftsH4.0ft5H4.0ft6H4.5fts5 ... Show all

Table of Contents