Gehl SL5640 Operator's Manual
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Gehl SL5640 Operator's Manual

Gehl SL5640 Operator's Manual

Skid-steer loaders
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SL5640
(SN 511701 and Up)
SL5640E (EU)
(SN 511501 and Up)
SL6640E
(SN 608301 and Up)
SL6640E (EU)
(SN 608101 and Up)
Skid-Steer Loaders
Form No.
917345/
EP0112
English

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Summary of Contents for Gehl SL5640

  • Page 1 SL5640 (SN 511701 and Up) Form No. SL5640E (EU) 917345/ EP0112 English (SN 511501 and Up) SL6640E (SN 608301 and Up) SL6640E (EU) (SN 608101 and Up) Skid-Steer Loaders...
  • Page 2 WRONG Manitou Americas, Inc., in cooperation with the Society of Automotive Engineers, has adopted this Safety Alert Symbol to pinpoint precautions which, if not properly followed, can create a safety hazard. When you see this symbol in this manual or on the machine itself, you are reminded to BE ALERT! Your personal Never use loader safety is involved!

  • Page 3: Table Of Contents

    Index ........105 Loader Model Number Loader Serial Number Engine Serial Number Hydraloc and Hydraglide are trademarks of Manitou Americas, Inc. Gehl, All-Tach, Power-A-Tach and Powerview are registered trademarks of Manitou Americas, Inc.

  • Page 4: Ec Declaration Of Conformity

    EC DECLARATION OF CONFORMITY Manufacturer: Manitou Americas, Inc. Address: One Gehl Way West Bend, WI 53095-0179 U.S.A. 3. Technical Construction File Location: Manitou Americas, Inc. One Gehl Way West Bend, WI 53095-0179 U.S.A. Authorized Representative: Address: We hereby declare that the model(s) listed below...

  • Page 5: Introduction

    The Gehl dealership network stands ready to provide you with any assistance you may require, including providing genuine Gehl service parts. All service parts should be obtained from your Gehl dealer. Provide complete information about the part and include the model and serial numbers of your machine.
  • Page 6 will allow the registered owner information to be updated, so that the owner can be notified directly in case of an important product issue, such as a safety update program. 917345/EP0112...

  • Page 7: Loader Identification

    Loader Identification 1. Tilt Cylinders 5. Lift Arm 2. Handholds 6. Tires 3. Restraint Bar 7. Attachment Bracket 4. Front Work Lights 1. Lift Cylinder 3. Engine Cover 2. Roll-Over/Falling Object 4. Rear Work Lights Protective System 5. Tail Lights (ROPS/FOPS) 6.

  • Page 8: Control/Indicator Symbols

    Control/Indicator Symbols Electrical Power Power Off Power On Engine Start Battery Charge Worklight w/Tail Worklight Safety Alert Hazard Flasher Fasten Seatbelt Lights Horn Read Operator’s Volume – Full Volume – Half Full Volume – Empty Manual High – Low Neutral Forward Reverse Parking Brake...

  • Page 9: Safety

    For further reference on the safe operation of skid-steer loaders,Manitou Amer- icas suggests that equipment owners obtain the “Skid-Steer Loader Safety” DVD, which is available through Gehl dealers. In addition, be sure that everyone who operates or works with this machine, whether family member or employee, is familiar with these safety precautions.

  • Page 10: Mandatory Safety Shutdown Procedure

    To ensure safe operation, replace damaged or worn-out parts with genuine Gehl service parts.  Gehl loaders are designed and intended to be used only with Gehl attach- ments and approved attachments. To avoid possible personal injury, equip- ment damage and performance problems, use only attachments that are approved for use on and within the operating capacity of the machine.

  • Page 11: During Operation

    During Operation  Machine stability is affected by: load being carried, height of the load, machine speed, abrupt control movements and driving over uneven terrain. DISREGARDING ANY OF THESE FACTORS CAN CAUSE THE LOADER TO TIP, THROWING THE OPERATOR OUT OF THE SEAT OR LOADER, RESULTING IN DEATH OR SERIOUS INJURY.

  • Page 12: Potential Hazards

    These decals must be kept legible. If missing or illegible, they must be replaced promptly. Replacements can be obtained from your Gehl dealer. If there is a decal on a part that is to be replaced, be sure that the decal is applied to the replacement part.

  • Page 13: Ansi-Style Safety Decals Inside The Rops/Fops

    ANSI-Style Safety Decals inside the ROPS/FOPS 137628 – Located on manual box, behind seat Located on left instrument panel 137647 – Located on operator’s lower left side 917345/EP0112...

  • Page 14: Ansi-Style Safety Decals On The Outside Of The Loader

    ANSI-Style Safety Decals on the outside of the Loader 137655 – Located on front of loader 132166 – Located on rear window emergency exit 137720 – Located on hitch (manual hitch loaders only) 917345/EP0112...
  • Page 15 ANSI-Style Safety Decals on the outside of the Loader 137647 – Located on the left fender and left side of ROPS/FOPS 184214 – Located under the ROPS/FOPS 917345/EP0112...

  • Page 16: Ansi-Style Safety Decals In The Engine Compartment

    ANSI-Style Safety Decals in the Engine Compartment 137657 – Located on radiator 137658 – Located on radiator 917345/EP0112...

  • Page 17: Iso-Style (Used Internationally) Safety Decals Inside The Rops/Fops

    ISO-Style (used Internationally) Safety Decals inside the ROPS/FOPS Safety alert: Always follow “Mandatory Safety Shutdown Procedure” in Operator’s Manual. 1 – Lower equipment to ground. 2 – Reduce throttle, stop engine. 3 – Apply parking brake; remove 137842 – Located on manual key.

  • Page 18: Iso-Style (Used Internationally) Safety Decals On The Outside Of The Loader

    ISO-Style (used Internationally) Safety Decals on the outside of the Loader 137844 – Located on front of loader A – Crush hazard: Keep out from under work tool unless lift arm is supported. B – Fall hazard: No riders. Never use work tool as work platform. 132166 –...
  • Page 19 ISO-Style (used Internationally) Safety Decals on the outside of the Loader Crush hazard: Hose removal or component failure can cause lift arm to drop. Always use lift arm support device when leaving lift arm raised for service. 137848 – Located on the left fender and left side of ROPS/FOPS 184711 –...

  • Page 20: Iso-Style (Used Internationally) Safety Decals In The Engine Compartment

    ISO-Style (used Internationally) Safety Decals in the Engine Compartment 137845 – Located on radiator A – Safety alert: Keep safety devices in place and in working order. Keep guards, screens and windows in place. B – Fire hazard: Do not smoke while fueling or servicing machine. Clean debris from engine compartment daily to avoid fire.

  • Page 21: Product And Component Plate Locations

    Product and Component Plate Locations Product and Component Plates 1. Operator protection system plate: with model, certification and operator protection system serial number (located inside left ROPS/FOPS) 2. Skid-steer serial number imprint 3. Engine plate: with type designation, product and serial number 4.
  • Page 22 Notes 917345/EP0112...

  • Page 23: Controls And Safety Equipment

    Know how to stop loader operation before starting it. This Gehl loader is designed and intended to be used only with a Gehl attachment or a Manitou Americas-approved referral attachment or accessory. Manitou Americas cannot be responsible for operator safety if the loader is used with a non- approved attachment.

  • Page 24: Operator's Seat

    Operator’s Seat The seat is mounted on rails for rearward or forward repositioning. A spring-loaded latch handle activates the seat position adjustment mechanism. Suspension seat: A weight adjustment knob is provided for individual operator adjustment. Figure 1 Operator’s Seat 1. Restraint Bar 2.

  • Page 25: Testing The Safety Interlock System

    Note: The auxiliary hydraulic circuit can be detented in the “on” position for continuous operation with the restraint bar raised and operator out of the seat. (See Auxiliary Hydraulic Controls, page 37.) Testing the Safety Interlock System Before exiting the machine, check the safety interlock system for proper operation: Restraint Bar With the engine running, raise the restraint bar.

  • Page 26: Rear Window Emergency Exit

    Notice: With the keyswitch OFF and the solenoid valve functioning properly, the lift arm will stay raised if the lift control is moved to “lower.” If the lift arm moves, lower the lift arm completely and contact your Gehl dealer immediately to determine the cause.

  • Page 27: Accessory Plug

    If the lift arm moves, do NOT leave the operator’s compartment. Instead, have someone store the support device for you. Then, contact your Gehl dealer to determine the reason why the lift arm lowers while the Figure 4 Lift Arm Support Device Storage Location keyswitch is in the OFF position.

  • Page 28: Heater And Air Conditioner (Optional)

    Heater and Air Conditioner (optional) Loaders with the combination heater/air conditioner have two controls on the left instrument panel: fan speed, heater/air con- ditioner on/off. 1. Fan Speed: Controls the air flow. 2. Heater/Air Conditioner Selector Switch: Turns on either the heater or the air conditioner.

  • Page 29: Attachment Mounting

    Two-Speed Drive (optional) Loaders with the optional two-speed transmission use the left button on the left control handle for shifting between High (H) and Low (L). Shifting to High allows the machine to exceed 8 mph (13 km/h), up to a maximum speed of 12.3 mph (19,8 km/h).
  • Page 30 ® Power-A-Tach Hitch With the optional hitch mechanism, a switch on the left control panel acti- vates the latch pins. Metal “flags” on the pins indicate their position: the pin flags rotate to a horizontal position when engaging the pins and a vertical position when disengaging the pins.

  • Page 31: Instrument Panels

    Instrument Panels The instrument panels contain the switches and indicator lights. Symbols on the indicator lights are visible only when the indicator light are on. Left Panel 1. Two-Speed Transmission (optional) – Lights when high speed is engaged. 2. Parking Brake – Lights when the parking brake is applied.

  • Page 32: Right Panel

    Right Panel 1. Hourmeter – Displays the total operating hours of the loader. 2. Fuel Level Gauge – Displays the amount of fuel in the tank. 3. Engine Coolant Temperature Gauge – Displays the temperature of the engine cool- ant. 4.
  • Page 33 8. Keyswitch – In a clockwise rotation, these positions are: • OFF Position – With the key vertical, power from the battery is discon- nected from the controls and instrument panel electrical circuits. This is the only position from which the key can be inserted or removed. •...

  • Page 34: Joystick Controls

    Joystick Controls The loader may be equipped with dual joystick controls, (Figure 12). The left joystick controls the drive and the right joystick controls the lift/tilt. Drive Controls Forward, reverse, speed and turning maneuvers are accom- plished by movement of the left joystick.

  • Page 35: Lift/Tilt Control

    Lift/Tilt Control Moving the lift arm and tilting the attachment are accomplished by movement of the right joystick. To raise the lift arm, pull the control straight rearward; to lower the lift arm, push the control straight forward. To tilt the attachment for- ward and downward, move the control to the right;...

  • Page 36: Hand/Foot Controls

    Hand/Foot Controls The loader may be equipped with hand/foot controls (Figure 13). The handles con- trol the drive and the foot pedals control the lift/tilt. Drive Controls Forward, reverse, speed and turning maneuvers are accom- plished by movement of the control handles.

  • Page 37: Lift/Tilt Controls

    Lift/Tilt Controls Moving the lift arm and tilting the attachment are accomplished by movement of the foot pedals. The left pedal raises and lowers the lift arm; the right pedal tilts the attachment. To raise the lift arm, push down on the back of the left pedal with your left heel;...

  • Page 38: T-Bar Controls

    T-Bar Controls Your loader may be equipped with the Gehl T-Bar control option. The left T-Bar controls the drive and the right T-Bar con- trols the lift/tilt. Drive Controls Forward, reverse, speed and turning maneuvers are accomplished by move- Figure 14 T-Bar Controls ment of the left T-Bar.
  • Page 39 T-Bar/Joystick Controls Your loader may be equipped with the Gehl T-Bar/Joystick control option. The left T-Bar controls the drive and the right joystick controls the lift/tilt. Drive Controls Forward, reverse, speed and turning maneuvers are accomplished by move- Figure 15 T-Bar/Joystick ment of the left T-Bar.
  • Page 40 Lift/Tilt Control Moving the lift arm and tilting the attachment are accomplished by movement of the right joystick. To raise the lift arm, pull the control straight rearward; to lower the lift arm, push the control straight forward. To tilt the attachment for- ward and down, move the control to the right;...

  • Page 41: Standard-Flow Auxiliary Hydraulic Control

    Auxiliary Hydraulic Controls Auxiliary hydraulics are used with attachments that have a mechanism requiring hydraulic power. Always be sure the auxiliary hydraulic control WARNING is in neutral before starting the loader or dis- connecting the auxiliary hydraulic couplers. Standard-Flow Auxiliary Hydraulic Control Loaders are equipped with a standard-flow auxiliary hydraulic system with flat- face couplers.

  • Page 42: High-Flow Auxiliary Hydraulic Control (Optional)

    Hand/Foot Control Loaders: The right handle controls the direction of oil flow. A locking pin locks it in the up position for continuous operation (Figure 18) Note: If the auxiliary hydraulic circuit has been activated for continuous operation, the operator can to raise the restraint bar and leave the seat without cancelling the continuous operation.

  • Page 43: Operation

    CHAPTER 4 OPERATION Before starting the engine and operating the WARNING loader, review and comply with all safety rec- ommendations in the Safety chapter of this manual. Know how to stop the loader before starting it. Also, be sure to fasten and prop- erly adjust the seatbelt(s) and lower the operator restraint bar.

  • Page 44: Cold Starting

    Important: If the indicator warning lights do not go off, stop the engine and investigate the cause. Cold-Starting If the temperature is below 32°F (0°C), the following is recommended to make starting the engine easier:  Replace the engine oil with SAE 10W-30 oil; ...

  • Page 45: Parking The Loader

    Parking the Loader Park the loader away from traffic on level ground. If this is not possible, park the loader across the incline and block the tires to prevent movement. Jump-starting If the battery becomes discharged or does not have enough power to start the engine, use jumper cables and the following procedure to jump-start the engine.

  • Page 46: Changing Attachments

    Allow sufficient time for the skid-steer loader battery to build-up a charge before operating the loader or shutting off the engine. Changing Attachments To prevent unexpected release of the attach- WARNING ment from the hitch, be sure to properly secure the hitch latch pins by rotating the latch levers fully ®...

  • Page 47: Connecting Auxiliary Hydraulic Couplings

    Important: To check that the attachment is properly installed, apply downward pressure to the attachment prior to operating. Connecting Auxiliary Hydraulic Couplings Note: With the engine off, key in the ON position and the restraint bar down, the auxiliary hydraulic control can be moved to relieve any pressure in the hydraulic system.

  • Page 48: Loading A Bucket

    trically charged conductor or gas line. Accidental contact or rup- ture can result in electrocution or an explosion. Contact the “Call Before You Dig” referral system at 8-1-1 in the U.S., or 888-258- 0808 in the U.S. and Canada or proper local authorities for utility line locations before starting to dig.

  • Page 49: Dumping The Load Into A Truck (Or Hopper)

    Never push the “float” button with the bucket WARNING or attachment loaded or raised, because this will cause the lift arm to lower rapidly. Dumping the Load into a Truck (or Hopper) Carry the loaded bucket low and approach the vehicle (or hopper.) Stop as close to the side of the truck (or hopper) as pos- sible while allowing for clearance to raise the lift arm and loaded bucket.

  • Page 50: Leveling The Ground

    Leveling the Ground Drive the loader to the far edge of the area to be leveled. Tilt the bucket forward to position the bucket cutting edge at a 30 to 45 degree angle to the surface being leveled. Then place the lift arm into “float”...

  • Page 51: Vibration Measurement And Actions

     Improper operating techniques, such as driving too fast  Incorrect adjustment of the seat and controls  Other physical activities while using the machine Vibration Measurement and Actions The vibration directive places the responsibility for compliance on employers. Actions that should be followed by employers include: ...

  • Page 52: Vibration Levels

    For additional vibration data, refer to ISO TR 25398. The data above indicates that Gehl skid-steer loaders, when used in a similar manner as described above, do not exceed the limit value for Whole-Body Vibra- tions, and can therefore be operated by one operator for at least 8 hours per day.

  • Page 53: Highway Travel

    Highway Travel If it becomes necessary to move the loader a long distance, use a properly rated trailer. (See Transporting the Loader on page 50.) For short distance highway travel, attach an SMV (Slow-Moving Vehicle) emblem (purchased locally) to the back of the loader.

  • Page 54: Transporting The Loader

    Figure 29 Rear Tie-Down/Rear Retrieval Lifting the Loader The loader can be lifted using a single-point or four-point lift kit, which is avail- able from your Gehl dealer. WARNING • Before lifting, check the lift kit for proper installation. •...
  • Page 55 • Loader may only be lifted with an empty bucket or empty pallet forks, or with no attachment. Never lift the loader with attach- ments other than those stated. Lift equipment used and its installation is the responsibility of the party con- ducting the lift.
  • Page 56 Notes 917345/EP0112...

  • Page 57: Dealer Services

    The following areas of component service, replacement and adjustments require special tools and knowledge for proper servicing and should be performed only by your authorized Gehl skid-steer loader dealer: hydrostatic drive components, hydraulic system pumps, valves, hydraulic cylinders, electrical components (other than battery, fuses or relays).

  • Page 58: Replacement Parts

    Fresh Air Intake Filter (heater option) 184708 Recirculation Air Filter (heater option) 184709 Note: Part numbers may change. Your Gehl dealer will always have the latest part numbers. Important: To ensure continued warranty coverage, use only genuine Gehl replacement filters.

  • Page 59: Loader Lowering Procedure

    2. Using a jack or hoist capable of lifting the fully-equipped weight of the loader (with all attached options), lift the rear of the loader until the rear tires are off the ground. 3. Stack wooden blocks under the flat part of the loader chassis. They should run parallel with, but not touch, the rear tires.

  • Page 60: Tilting Back The Rops/Fops

    Tilting Back the ROPS/FOPS The ROPS/FOPS is designed to protect the operator from falling objects and provide protection if the loader tips or rolls over, provided the operator is secured inside the ROPS/FOPS by the seat belt and restraint bar. For service, unbolt the ROPS/FOPS anchor bolts and tilt it back slowly, moving the control handles out of the way.
  • Page 61 Lubrication Listed below are the temperature ranges and types of lubricants for this machine. Refer to the separate engine manual for more information regarding engine lubri- cants, quantities and grades required. Note: Refer to the specific service sections for detailed information on periodic checking and replenishing of lubricants.
  • Page 62 Figure 36 Service Locations 10 Hours 500 Hours Lubrication Procedure 250 Hours (or Daily) (or Yearly)  Check Engine Oil Level (page 64)  Check Hydraulic Oil Level (page 69) Grease Lift Arm, Hitch, Cylinder Pivots and  Latch Pins (page 57) ...

  • Page 63: Checking And Adding Oil

    Chaincases There is a chaincase on each side of the loader. Refer to the Maintenance Interval Chart (page 85) for change intervals. Refer to the Lubrication chart (page 58). Checking and Adding Oil 1. Park the loader on a level surface. Stop the engine. 2.

  • Page 64: Drive Chains

    Drive Chains Drive chains are located in the chaincase on each side of the machine. Refer to the Maintenance Interval Chart (page 85) for tension check interval. Checking Chain Tension 1. Raise the loader following the Loader Raising Procedure (page 54). 2.

  • Page 65: Outer Element

    The outer element should be replaced only when the restriction indicator turns red. The inner element should be replaced every third time the outer element is replaced, unless the outer element is damaged or the inner element is visibly dirty. Along with a daily check of the restriction indicator, check that the air cleaner intake hose and clamps, and the mounting bracket hardware are properly secure.

  • Page 66: Inner Element

    Inner Element Note: Replace the inner element only if it is visibly dirty or if the outer element has been replaced three times. Before removing the inner element from the housing, clean out any dirt built up in the housing. Leave the inner element installed during this step to prevent debris from entering the engine intake manifold.

  • Page 67: Engine Service

    Engine Service Figure 40 Engine Service Components 1. Muffler 6. Water Separator 2. Air Cleaner 7. Fuel Filter 3. Coolant Recovery Tank 8. Engine Oil Drain 4. Radiator/Cooler 9. Engine Oil Fill Cap 5. Engine Oil Filter 10. Engine Oil Dipstick 917345/EP0112...
  • Page 68 Refer to the Maintenance Interval chart (page 85) for change intervals. Refer to the Replacement Parts chart (page 54) for filter part numbers. Checking Engine Mounting Hardware All bolts that secure the engine mounting brackets to the engine and the loader frame should be checked and re-torqued as necessary.

  • Page 69: Engine Diagnostic Chart

    necessary. Water can be drained from the separator by opening the valve located at the bottom of the separator bowl. Engine Diagnostic Chart When detecting failures, the engine electronic control unit (ECU) flashes the failure lamp to alert the operator to the occurrence of the failure conditions. The failure lamp will light for two seconds when the engine electronic control unit is power on.
  • Page 70 Engine Diagnostic Chart (cont.) Action/ Number Failure detection Item Operation when failure occurs condition for Category conditions recovery flashes Coolant tempera- Sensor voltage is Engine runs with a coolant temperature of Correct failure. Always ture sensor failure 4.8 V or more, or 30°C.
  • Page 71 Engine Diagnostic Chart (cont.) Action/ Number Failure detection Item Operation when failure occurs condition for Category conditions recovery flashes Backup speed Engine start signal Engine continues to run while main speed Turn key off. Default to sensor failure (E8) is on, but the sensor is used.
  • Page 72 Engine Diagnostic Chart (cont.) Action/ Number Failure detection Item Operation when failure occurs condition for Category conditions recovery flashes 19 Sensor 5V failure Monitoring voltage Engine runs normally. Turn key off. Always is approx. 0 V. enable Monitoring voltage is 4.5 V or less. Monitoring voltage is 5.5 V or more.

  • Page 73: Hydraulic System

    Hydraulic System Refer to the Maintenance Interval Chart (page 85) for service intervals. Refer to the Replacement Parts chart (page 54) for filter part numbers. Before servicing the hydraulic system, be WARNING sure the lift arm is lowered. Checking Hydraulic Oil Level The loader has a sight gauge located at the right rear of the skid-steer loader inside the engine compartment (Figure 43).

  • Page 74: Bucket Cutting Edge

    Changing Hydraulic Oil The hydraulic oil must be replaced if it becomes contaminated, after major repairs and after 1000 hours or one year of use. 1. Install a catch pan of sufficient capacity under the oil reservoir. See page 57. 2.

  • Page 75: Cleaning The Cooling System

    Cooling System Important: Check the cooling system daily to prevent overheating, loss of perfor- mance and engine damage. Cleaning the Cooling System Allow sufficient time for the oil radiator to WARNING cool before working on or near it. Parts get extremely hot during operation and can burn you.

  • Page 76: Checking Tire Pressure

    Checking Tire Pressure Correct tire pressure should be maintained to enhance operating stability and extend tire life. Refer to the chart below for proper inflation pressures. Inflation Pressure Tire Size 12 x 16.5 10-ply Heavy-Duty Flotation 14 x 17.5 12-ply Heavy-Duty Flotation 12 x 16.5 12-ply Severe-Duty...

  • Page 77: Electrical System

    Electrical System Fuse Panel The main fuse panel is located behind the left cover in the operator’s compart- ment near the left side of the seat. The loader also has a distribution panel located behind and to the left of the battery. Battery Before servicing the battery or electrical WARNING...
  • Page 78 Notes 917345/EP0112...

  • Page 79: Troubleshooting

    CHAPTER 6 TROUBLESHOOTING Electrical System Problem Possible Cause Remedy Battery disconnect switch is Turn battery disconnect in OFF position. switch to ON. Main wiring harness Check main harness connectors at rear of ROPS/ connectors. FOPS not properly plugged in. Entire electrical Faulty keyswitch.
  • Page 80 Electrical System Problem Possible Cause Remedy Battery terminal or cables Clean terminal, cables and loose or corroded. retighten Battery discharged or Recharge or replace battery. defective. Seat or restraint bar switch Contact your dealer. malfunctioning or not actuated. Ignition wiring, seat switch, Check wiring for poor restraint bar switch, etc.
  • Page 81 Engine Problem Possible Cause Remedy Engine cranking speed too Battery requires recharging slow. or replacing, or, in cold temperatures, pre-warm the engine. Auxiliary valve engaged. Return control valves to neutral. Fuel tank empty. Refill fuel tank. Engine turns over but will not start. Fuel valves turned off.

  • Page 82: Hydrostatic Drive System

    Hydrostatic Drive System Problem Possible Cause Remedy Hydraulic oil viscosity too Allow longer warm-up or heavy. replace oil with proper No response from viscosity oil. either hydrostatic drive or the lift/tilt Hydraulic oil too low. Check for low oil level in systems.
  • Page 83 Hydrostatic Drive System Problem Possible Cause Remedy Air in hydraulic system. Cycle lift and tilt cylinders to maximum stroke and maintain pressure for short time to clear air from system. Also check for low oil level in reservoir, fill as needed. Sluggish Hydraulic oil level too low.
  • Page 84 Hydraulic System Problem Possible Cause Remedy Hydraulic oil viscosity too Allow longer warm-up or heavy. replace oil with proper viscosity oil. Air in hydraulic system. Cycle lift and tilt cylinders to maximum stroke and Hydrostatic (drive) maintain pressure for short system is noisy.
  • Page 85 Hydraulic System Problem Possible Cause Remedy Restraint bar raised. Lower restraint bar. Hydraulic oil viscosity too Allow longer warm-up or heavy. replace with proper viscosity oil. Hydraulic oil level low. Check oil level in reservoir. If Lift/Tilt controls fail oil is low, check for external to respond.
  • Page 86 Hydraulic System Problem Possible Cause Remedy Float or Hydroglide activated. Turn off float and Hydroglide. No down pressure on the bucket. Tilt cylinders malfunctioning. Contact your dealer. Oil leaking past tilt cylinder Contact your dealer. seals (internal or external). Bucket drifts down Self-leveling valve is Contact your dealer.
  • Page 87 Hydraulic System Problem Possible Cause Remedy Control linkage misadjusted. Check linkage, readjust for full spool travel. Low engine speed. Operate engine at higher speed. High-flow auxiliary functions slowly. Hydraulic oil level low. Add oil. Hydraulic oil viscosity too Allow longer warm-up, or heavy.
  • Page 88 Notes 917345/EP0112...

  • Page 89: Maintenance

    CHAPTER 7 MAINTENANCE This Maintenance Interval chart was developed to match the Service chapter of this manual. Detailed information on each service procedure is in the Service chapter. A Maintenance Log follows this chart for recording maintenance performed. Recording 10-hour (or daily) service intervals is impractical and is not recom- mended.

  • Page 90: Maintenance Log

    Maintenance Log Date Hours Service Procedure 917345/EP0112...
  • Page 91 Maintenance Log Date Hours Service Procedure 917345/EP0112...
  • Page 92 Maintenance Log Date Hours Service Procedure 917345/EP0112...

  • Page 93: Specifications

    CHAPTER 8 SPECIFICATIONS Loader Specifications SL5640E SL5640E SL5640E (EU) SL5640E (EU) Specification Tier 3 Engine Tier 4i Engine Operating Weight 7460 lbs. (3383 kg) 7460 lbs. (3383 kg) Shipping Weight 6716 lbs. (3046 kg) 6716 lbs. (3046 kg) 2200 lbs. (998 kg) 2200 lbs.
  • Page 94 SL6640E SL6640E SL6640E(EU) SL6640E(EU) Specification Tier 3 Engine Tier 4i Engine Operating Weight 7900 lbs. (3583 kg) 7900 lbs. (3583 kg) Shipping Weight 7106 lbs. (3223 kg) 7106 lbs. (3223 kg) 2600 lbs. (1179 kg) 2600 lbs. (1179 kg) Rated Operating Load Engine Make Yanmar...

  • Page 95: Standard Features

    Standard Features   Fuel Level Gauge Dual-Element Air Cleaner with  Visual Indicator Engine Coolant Temperature  Anti-Vandalism Rear Door Gauge and Indicator Lamp   Hourmeter Pre-Heat Starting Assist   Hydraulic Oil Temperature Interior Servo-Controlled Hydrostatic Drive ...

  • Page 96: Dimensional Specifications

    Dimensional Specifications SL5640E & 15.3 ft (0.43 m ) Bucket w/12 x 16.5 Tires SL5640E (EU) inches A Overall Operation Height – Fully Raised 162.0 4115 B Height to Hinge Pin – Fully Raised 123.0 3124 C Overall Height – Top of ROPS 81.0 2057 D Overall Length –...
  • Page 97 SL6640E & 15.3 ft (0.43 m ) Bucket w/12 x 16.5 Tires SL6640E (EU) inches A Overall Operation Height – Fully Raised 167.0 4242 B Height to Hinge Pin – Fully Raised 123.0 3124 C Overall Height – of ROPS 81.0 2057 D Overall Length –...

  • Page 98: Capacities And Ratings

    Capacities and Ratings 5640E/5640E (EU)/6640E/6640E (EU) Note: Use the Common Materials and Densities table (page 96) for selecting the appropriate bucket. Dirt/Construction Buckets 5640E/ 6640E/ 5640E 6640E Description Weight (EU) (EU) Rating Rating 465 lbs. 1915 lbs. 2280 lbs. 70 in./15 ft (1778 mm/0.43 m (211 kg) (869 kg)
  • Page 99 Pallet Forks - 48 in. (1229 mm) 5640/ 6640E/ 5640E 6640E Description Weight (EU) (EU) Rating Rating For 16 in. (406 mm) Load Center per 492 lbs. 1624 lbs. 1913 lbs. EN 474-3 (223 kg) (737 kg) (868 kg) For 20 in. (508 mm) Load Center per 492 lbs.

  • Page 100: Common Materials And Densities

    Common Materials and Densities Density Material lbs./cu. ft. kg/m Ashes 35-50 560-800 Brick-common 1792 Cement 1760 Charcoal Clay, wet-dry 80-100 1280-1600 Coal 53-63 848-1008 Concrete 1840 Cinders Coal-anthracite 1504 Coke Earth-dry loam 70-90 1121-1442 Earth-wet loam 80-100 1281-1602 Granite 93-111 1488-1776 Gravel-dry 1602...

  • Page 101: Bucket Selection

    Bucket Selection To use the table, find the material to be loaded and read its maximum density. Then multiply the volumetric rating of the bucket by the material density to determine if the bucket can safely be used. See page 94 for a listing of buckets and their load ratings.
  • Page 102 Notes 917345/EP0112...

  • Page 103: Torque Specifications

    CHAPTER 9 TORQUE SPECIFICATIONS Use these torque values when tightening hardware (excluding locknuts, and self- tapping, thread-forming, and sheet metal screws) unless otherwise specified. UNIFIED GRADE 2 GRADE 5 GRADE 8 NATIONAL LUBED LUBED LUBED THREAD 8-32 8-36 10-24 10-32 1/4-20 1/4-28 5/16-18...

  • Page 104: Warranty

    GEHL COMPANY WARRANTY GEHL COMPANY, hereinafter referred to as Gehl, warrants new Gehl equipment to the Original Retail Purchaser to be free from defects in material and workmanship for a period of twelve (12) months from the Warranty Start Date.
  • Page 105 INDEX Cooling System ... . Cleaning ....Accessory Plug ... . Adjustments .
  • Page 106 Horn ..... Parking the Loader ..Hydraglide Ride Plate Locations ... . Control System .
  • Page 107 Electrical System ..Engine ....WARRANTY ....Hydraulic System .
  • Page 108 917345/AP0608...

  • Page 109: Index

    WRONG WRONG Never exceed rated Always carry attachment operating load. as low as possible. Do not travel or turn with the lift arm raised. Load, unload and turn on flat level surface. WRONG WRONG Never carry riders. Never modify equipment. Keep bystanders away Use only attachments from work area.

  • Page 110: California Proposition 65 Warnings

    State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling battery. ® Manitou Americas, Inc., One Gehl Way, P.O. Box 179, West Bend, WI 53095-0179 U.S.A. www.gehl.com © 2012 MANITOU AMERICAS, INC.

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