Gehl SL4635 Operator's Manual
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Gehl SL4635 Operator's Manual

Gehl SL4635 Operator's Manual

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Form No.
907808
English
SL4635
&
SL4835
Skid Loaders
OPERATOR'S MANUAL

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Summary of Contents for Gehl SL4635

  • Page 1 Form No. 907808 English SL4635 & SL4835 Skid Loaders OPERATOR’S MANUAL...

  • Page 2: International Symbols

    INTERNATIONAL SYMBOLS Engine Start Engine Stop Power On Power Off Work Light Hazard Flasher Horn Volume - Full Volume - Half Full Volume - Empty Battery Charge Fuse Read Operator’s Engine Manual Hourmeter Diesel Fuel Lift Point Parking Brake Neutral Transmission Transmission Hydraulic Oil...

  • Page 3: Table Of Contents

    Warranty ......... inside back cover IDENTIFICATION INFORMATION Write your Gehl loader model and serial numbers in the spaces provided below. Refer to these numbers when inquiring about parts or service from your Gehl dealer.

  • Page 4: Introduction

    A manual box in the ROPS/FOPS stores the Operator’s Manual. After using the manual, please return it to the box and keep it with the unit at all times. If this machine is resold, Gehl Company recommends that this manual be given to the new owner.

  • Page 5: Lift Arm Support Device

    Loader Identification FRONT WORK LIGHTS RISER RESTRAINT BAR CONTROL HANDLES OPTIONAL HIGH FLOW QUICK COUPLERS LIFT ARM SUPPORT DEVICE TILT CYLINDERS ATTACHMENT MECHANISM with BUCKET LIFT CYLINDER AUXILIARY COUPLERS TIRES ROLLOVER PROTECTIVE STRUCTURE (ROPS) HAND HOLDS ENGINE COVER TAILLIGHTS LIFT ARM REAR WORK LIGHTS REAR GRILLE...

  • Page 6: Model Specifications

    0.76 cubic meters Operating load rated with a 65 inch (1650 mm) dirt/construction bucket for an SL4635 or a 68 inch (1730 mm) dirt/construction bucket for an SL4835, 10 x 16.5 tires and a 175lb (79kg) operator, in accordance with SAE J818.
  • Page 7 Ü Ü Seat Belt Indicator Light Independent Steel Hydraulic Ü and Buzzer Spark Arrestor Muffler Reservoir (SL4635 & SL4635SX only) Ü Ü Choice of three controls: Dual Front & Rear Halogen Work Ü ™ Gehl T-Bar, Hand & Foot Hydraloc...

  • Page 8: General Specifications

    General Specifications SL4635 SL4835 inch (mm) inch (mm) Overall Operation Height - Fully Raised 153.0 (3886) 153.0 (3886) Height to Hinge Pin - Fully Raised 115.0 (2921) 115.0 (2921) Overall Height - Top of ROPS 76.0 (1937) 76.0 (1937) Ground Clearance to Chassis (Between Wheels)

  • Page 9: Checklists

    CHAPTER 3 CHECKLISTS PRE-DELIVERY The following checklist is an important reminder of valuable information and inspections which MUST be made before delivering the loader to the customer. Check off each item after the prescribed action is taken. þ Check that: Unit has NOT been damaged in shipment.
  • Page 10 Explain that the customer MUST consult the engine manual (provided) for related specifications, operating adjustments and maintenance instructions. Completely fill out the Owner’s Registration, including customer’s signature and return it to the Gehl company. Customer’s Signature Date Delivered (Dealer’s File Copy) INTENTIONALLY BLANK (To be removed as Dealer’s file copy)
  • Page 11 PRINTED IN USA 907808/CP0300...
  • Page 12 CHAPTER 3 CHECKLISTS PRE-DELIVERY The following checklist is an important reminder of valuable information and inspections which MUST be made before delivering the loader to the customer. Check off each item after prescribed action is taken. þ Check that: Unit has NOT been damaged in shipment. Check for such things as dents and loose or missing parts;...
  • Page 13 Explain that the customer MUST consult the engine manual (provided) for related specifications, operating adjustments and maintenance instructions. Completely fill out the Owner’s Registration, including customer’s signature and return it to the Gehl company. Customer’s Signature Date Delivered (Pages 7 & 8 removed at perforation)

  • Page 14: Safety

    “CAUTION” indicates a potentially hazardous situation which, if not avoided, may result in The Gehl Company ALWAYS considers the operator’s minor or moderate injury. May also alert safety when designing its machinery, and guards against unsafe practices.

  • Page 15: Additional Safety Reminders

    BEFORE operating this equipment. lead to serious injury to the eyes or other parts of the body. Ü Gehl skid loaders are designed and intended to be Ü used ONLY with Gehl Company attachments or NEVER push the lift/tilt T-Bar control into the approved referral attachments.
  • Page 16 SAFETY 122718 129258 907808/CP0300 PRINTED IN USA...
  • Page 17 SAFETY 129130 114316 091050 PRINTED IN USA 907808/CP0300...
  • Page 18 SAFETY 093202 093474 907808/CP0300 PRINTED IN USA...
  • Page 19 SAFETY 091035 093367 PRINTED IN USA 907808/CP0300...
  • Page 20 SAFETY 093479 L65928 093477 907808/CP0300 PRINTED IN USA...
  • Page 21 SAFETY 129132 122745 PRINTED IN USA 907808/CP0300...
  • Page 22 SAFETY 093475 132166 907808/CP0300 PRINTED IN USA...

  • Page 23: Controls & Safety Equipment

    BEFORE starting it. This Gehl skid instructions appropriate for your loader type. loader is designed and intended to be used ONLY with a Gehl Company attachment or a Throttle Lever and Accelerator Pedal Gehl Company approved accessory or referral (Fig.
  • Page 24 T-BAR CONTROLLED LOADERS (Fig. 5-2) T-Bars on the skid loader control the hydraulic and hydrostatic functions. The left T-Bar controls the drive (hydrostatics) and the right T-Bar controls the lift/tilt (hydraulics). Drive Control T-Bar The left T-Bar is the drive control which is linked to the hydrostatic drives.
  • Page 25 T-BAR CONTROLS LEFT T-BAR CONTROL RIGHT T-BAR CONTROL FORWARD BACKWARD RIGHT TURN LEFT TURN RIGHT PIVOT LEFT PIVOT FLOAT RAISE LIFT ARM LOWER LIFT ARM BUCKET ROLLBACK BUCKET DUMP PRINTED IN USA 907808/CP0300...
  • Page 26 HAND & FOOT CONTROLLED LOADERS ELECTRIC AUXILIARY HYDRAULICS with (Fig. 5-3) Handles on the skid loader control the drive (hydrostatic) functions. The foot pedals control the lift/tilt (hydraulic) functions. Drive Control Handles NOTE: Moving the handles equally in the same direction will result in traveling straight forward or straight backward.
  • Page 27 HAND & FOOT CONTROLS LEFT HAND CONTROL LEFT & RIGHT FOOT PEDALS RIGHT HAND CONTROL FORWARD BACKWARD RIGHT TURN LEFT TURN RIGHT PIVOT LEFT PIVOT FLOAT RAISE LIFT ARM LOWER LIFT ARM BUCKET ROLLBACK BUCKET DUMP PRINTED IN USA 907808/CP0300...
  • Page 28 HAND & FOOT CONTROLLED LOADERS MECHANICAL AUXILIARY HYDRAULICS with (Fig. 5-4) Handles on the skid loader control the drive (hydrostatic) functions. The foot pedals control the lift/tilt (hydraulic) functions. Drive Control Handles NOTE: Moving the handles equally in the same direction will result in traveling straight forward or straight backward.
  • Page 29 HAND & FOOT CONTROLS LEFT HAND CONTROL LEFT & RIGHT FOOT PEDALS RIGHT HAND CONTROL FORWARD BACKWARD RIGHT TURN LEFT TURN RIGHT PIVOT LEFT PIVOT FLOAT RAISE LIFT ARM LOWER LIFT ARM BUCKET ROLLBACK BUCKET DUMP PRINTED IN USA 907808/CP0300...
  • Page 30 DUAL HAND CONTROLLED LOADERS (Fig. 5-5) Handles with pivoting grips on the skid loader control the hydraulic and hydrostatic function. The right handle controls the right side drive and the tilt. The left handle controls the left side drive and the lift. Drive Control Handles NOTE: Moving the handles equally in the same direction will result in traveling straight forward or...
  • Page 31 DUAL HAND CONTROLS LEFT HANDLE CONTROL RIGHT HANDLE CONTROL FORWARD BACKWARD RIGHT TURN LEFT TURN RIGHT PIVOT LEFT PIVOT FLOAT RAISE LIFT ARM LOWER LIFT ARM BUCKET ROLLBACK BUCKET DUMP PRINTED IN USA 907808/CP0300...

  • Page 32: Seat Positioning

    Automatic Parking Brake (Fig. 5-6) This skid loader is equipped with a spring applied hydraulic release parking brake. The parking brake engages when the operator lifts the restraint bar, leaves the operator’s seat, and/or shuts the engine off. The brake can also be applied manually using the switch located on the left control panel of the ROPS.
  • Page 33 Battery Disconnect Switch (Optional) (Fig. 5-8) On loaders equipped with a battery disconnect switch, the battery can be disconnected from the electrical system by turning the switch to the “OFF” position. The switch is found below the battery, on the left side of the loader.

  • Page 34: Operation

    Instrument & Control Panel (Fig. 5-11) The instrument and control panel contains the following control switches and indicators. International symbols on the panel represent various functions, conditions and switch positions. Symbols are visible only when indicator lamps are on. 1. Engine Oil Temperature Gauge - Indicates the engine oil temperature.

  • Page 35: Operation

    9. Hourmeter - Indicates the total operating hours of 11. Light Switch - Controls all the lights (standard and the loader. The hourmeter is especially useful for optional) on the loader. International symbols logging time in the “Maintenance Log” located in denote the four positions of the light switch.
  • Page 36 Rotate the lever to the left (as viewed while sitting on the is any improper movement, troubleshoot and operator’s seat) to engage the lock pins. Rotate the lever correct the problem. Contact your Gehl dealer if to the right to disengage the lock pins. necessary.
  • Page 37 Then, stop the loader someone store the support device for you. Then, engine, remove the key and leave the operator’s contact your Gehl dealer to determine the reason compartment. why the lift arm lowers while the keyswitch is in the OFF position.
  • Page 38 807233. Standard auxiliary hydraulics can be added to an SL4635 by ordering field installation kit 807239. T-Bar and Dual Hand controlled loaders: A foot pedal is used to control the direction of oil flow. A stop is provided to lock the foot pedal for continuous operation.

  • Page 39: Starting The Loader

    CHAPTER 6 OPERATION General Information Starting The Loader (Fig. 6-1) WARNING CAUTION ALWAYS fasten your seat belt and lower the restraint bar BEFORE starting the engine. BEFORE starting the engine and operating the loader, review and comply with ALL safety recommendations in the SAFETY chapter of The following procedure is recommended for starting this manual.

  • Page 40: Loader Movement

    A p a n h e a t e r i s r e c o m m e n d e d f o r s t a r t i n g i n ground. temperatures of 20°F (-7°C) or lower. See your Gehl 3. Pull the throttle lever back to the idle position dealer for recommended heater options.

  • Page 41: T-Bar Controls

    Perform all drive control functions before operating both lift/tilt and drive controls. Return the drive controls to the “neutral” position to stop all movement. NOTE: If the engine stalls, all controls must be returned to their “neutral” positions before restarting the engine. O p e r a t i n g s k i l l s a r e o b t a i n e d t h r o u g h p r o p e r coordination of the loader’s forward and reverse movements, with raising and lowering the lift arm and...

  • Page 42: Changing Attachments

    Changing Attachments ™ Gehl All-Tach Attachment Mounting (Fig. 6-6) WARNING To prevent unexpected attachment release from the All-Tach attachment, BE SURE to properly secure the All-Tach mechanism lock Fig. 6-6: All-Tach Attachment (Disengaged) pins by rotating the latch levers to a horizontal 1.
  • Page 43 ™ Gehl Quick-Tach Attachment Mounting (Optional) (Fig. 6-7) WARNING To prevent unexpected attachment release from the Quick-Tach attachment, BE SURE to properly secure the Quick-Tach mechanism lock pins by rotating the latch lever all the way to the left. Fig. 6-7: Quick-Tach Attachment (Disengaged) A field installed Quick-Tach attachment mechanism for 1.

  • Page 44: Material Densities

    Manure-liquid 1040 following examples. Manure-solid Example 1: If clay (density of 80-100 lb/ft3) is to be Peat-solid hauled using an SL4635 loader, the maximum bucket Phosphate-granular 1440 size is (1425 lb 100 lb/ft = 14.2 ft ). Therefore, you Potash 1088 could safely use a bucket that has a capacity of 14.2...

  • Page 45: Loader Operations

    Loader Operations (Figs. 6-8 to 6-14) WARNING ALWAYS maintain a safe distance from electric power lines and avoid contact with any electrically charged conductor or gas line! Accidental contact or rupture can result in electrocution or an explosion! Contact the North American One Call Referral System at (888) 258-0808 for the local “Digger’s Hotline”...

  • Page 46: Dumping The Load Into A Box

    WARNING NEVER push the controls into the “float” position with the bucket or attachment loaded or raised, because it will cause the lift arm to lower rapidly. Dumping the Load Into a Box Carry the loaded bucket low and approach the truck, trailer or spreader box squarely with the side of the box.

  • Page 47: Leveling With A Bucket

    Leveling with a Bucket Drive the loader to the outer edge of the area to be leveled. Then, with the lift arm down against the frame, push the lift/tilt handle (hand controlled loaders), or left foot pedal (hand & foot controlled loaders), into the “float”...

  • Page 48: Lifting The Loader

    The skid loader can be lifted with a four point lift kit that Observe all local regulations governing the loading and can be purchased from your local Gehl dealer. Follow transporting of equipment. Ensure that the hauling the instructions supplied with the kit.

  • Page 49: Adjustments

    CHAPTER 7 ADJUSTMENTS Loader Raising Procedure Loader Lowering Procedure To raise the skid loader so all four (4) tires ARE NOT When service or adjustment procedures are complete, contacting the ground, use the procedure below: the skid loader can be taken down from the “raised” position.

  • Page 50: Throttle Lever

    If the cable is removed for service, engine related specifications, adjustments, maintenance refer to the Shop Manual or your Gehl dealer for proper and service information. adjustment details. Besides throttle cable adjustment, the throttle lever...
  • Page 51 To Adjust Chain Tension 7. After the proper chain tension is obtained, retighten the flanged lock nut and lock nut. 1. Raise the loader off the ground following the IMPORTANT: Over-tightening the drive chain will “Loader Raising Procedure” topic at the beginning cause premature drive chain and axle sprocket of this chapter.
  • Page 52 From engine harness power - left front of engine Fuseholder with 5 amp AGC Rocker switch Blade-type fuse located on instrument panel Actuator Gehl harness Clockwise = Retract Controller Potentiometer numbers Fig. 7-3: Electric Auxiliary Controls Adjustment 907808/CP0300 PRINTED IN USA...

  • Page 53: Lubrication

    CHAPTER 8 LUBRICATION General Information Lubricants NOTE:All lubrication should be performed on a stable, level surface. WARNING The chart below lists the locations, temperature ranges NEVER service this unit when any part of the and types of recommended lubricants to be used when machine is in motion.

  • Page 54: Lubrication Locations

    LUBRICATION LOCATIONS Every 10 Hours (or daily) Every 100 Hours Every 500 Hours (or annually) 1. Grease the lift arm pivots (2) 7. Check the oil level in the 9. Change the hydraulic oil chaincases 2. Grease the lift cylinder pivots (2) 10.

  • Page 55: Lubrication Chart

    Lubrication Chart Detailed views shown on previous page 500 hours (or annually) 100 hours 10 hours (or daily) 6 & 9 5 & 11 Engine Oil Grease Hydraulic Oil Chaincase Oil PRINTED IN USA 907808/CP0300...

  • Page 56: Troubleshooting

    IMPORTANT: DO NOT attempt to service or This Troubleshooting Guide lists potential problems, as repair major components, unless authorized to do well as possible causes and remedies, for Gehl skid loaders. so by your Gehl dealer. Any unauthorized repair will void the warranty.
  • Page 57 Clean terminals, cables and retighten. corroded. Starter will not engage when key is Faulty starter relay in instrument panel. Contact your Gehl dealer for assistance. turned to “Start”. Battery discharged or defective. Recharge or replace battery. Starter solenoid in chassis not Troubleshoot circuit per wiring diagram, functioning.
  • Page 58 Install a pan heater. Ambient temperature is too low. Install a pan heater. Fuel pump not working. Contact your Gehl dealer for assistance. Crankcase oil level too low or too high. Add or remove oil as required. Fan air circulation blocked or restricted.

  • Page 59: Parking Brake

    Reconnect linkage. direction. Low or no charge pressure. Contact your Gehl dealer for assistance. Hydrostatic pump(s) relief valves are Contact your Gehl dealer for assistance. malfunctioning. Air in the hydraulic system. Cycle lift and tilt cylinders to maximum stroke and maintain pressure for a short time to clear air from system.
  • Page 60 Also check for low oil level in reservoir, fill as needed. Drive motor(s) or hydrostatic pump(s) Contact your Gehl dealer for assistance. have internal damage or leakage. Rear hydrostatic pump arm control shaft Contact your Gehl dealer for assistance.

  • Page 61: Restraint Bar

    Control linkage is restricted. Check for control linkage restriction and adjust. Hydraulic oil leaking past cylinder Contact your Gehl dealer for assistance. piston seals. Hydraulic cylinder action is slow for lift Worn gear pump. Contact your Gehl dealer for assistance.
  • Page 62 Slow or no response control valve. for bucket tilt, lift works properly Low charge pressure. Contact your Gehl dealer for assistance. (Hand & Foot units only). Linkage misadjusted between right foot Readjust for full travel without restriction. pedal and pilot valve.

  • Page 63: Service

    Electrical system diagrams can be found in this chapter and used as a guide by the dealer for troubleshooting and Replacement Parts service parts reference. Part numbers may change. Your Gehl dealer will have the latest part number. Part Description Gehl Part No.

  • Page 64: Operator Services

    Operator Services Figures 10-1 and 10-2 show the locations of various components required for general loader services. Service Every 10 Hours or Daily Check Engine Oil Level (Fig. 10-2) NOTE: For new units, the first oil change should be after the first 50 hours. Open the engine access cover.
  • Page 65 4. Clean out the dirt built up in the housing. Leave the inner element installed during this step to prevent debris from entering the engine intake manifold. 5. Gehl does not recommend repeated cleaning of the outer filter. However if it is done, use the following procedure:...

  • Page 66: Service

    Tire Inflation Pressures Check Seat and Restraint Bar Operation Inflation Electrical switches in the seat and restraint bar MUST Pressure Tire Size and Description be closed (operator sitting on the seat and restraint bar lowered) to complete the circuit and start the engine. Narrow Width Heavy Duty Flotation Check Bucket Cutting Edge 10 x 16.5 - 8 ply...
  • Page 67 Service Every 100 Hours Check Hydraulic Filter Indicator (Fig. 10-2) Clean Spark Arrestor Muffler WARNING (Non-Turbo Units only) IMPORTANT: Non-Turbo powered loaders are Before servicing the hydraulic filter, BE SURE factory-equipped with a USDA Forestry Service the lift arm is lowered. approved spark arrestor muffler.
  • Page 68 Service Every 500 Hours or Yearly Handling the Battery Safely Check Engine Mounting Hardware WARNING ALL bolts which secure the engine mounting brackets Explosive gas is produced while a battery is in to the engine and the loader frame should be checked use or being charged.
  • Page 69 Jump-Starting 6. Start the loader. If it does not start at once, start the jumper vehicle engine to avoid excessive drain on If the battery becomes discharged or does not have the booster battery. enough power to start the engine, use jumper cables and 7.

  • Page 70: Replacement Parts

    Change Engine Oil & Filter (Figs. 10-4 to 10-6) NOTE: For new units, the first oil change should be after the first 50 hours. IMPORTANT: A LWAY S d isp o se o f waste lubricating oils according to local regulations or take to a recycling center for disposal;...

  • Page 71: Sl4635 Hydrostatic/Hydraulic

    SL4635 Hydrostatic/Hydraulic Schematic PRINTED IN USA 907808/CP0300...

  • Page 72: Sl46/4835Sx Hydrostatic/Hydraulic

    SL46/4835SX Hydrostatic/Hydraulic Schematic SN300119 and later - SL4635; SN400121 and later SL4835 907808/CP0300 PRINTED IN USA...
  • Page 73 SL46/4835SX Hydrostatic/Hydraulic Schematic Before SN300119 - SL4635; Before SN400121 - SL4835 PRINTED IN USA 907808/CP0300...

  • Page 74: Sl46/4835Dx Hydrostatic/Hydraulic

    SL46/4835DX Hydrostatic/Hydraulic Schematic SN300119 and later - SL4635; SN400121 and later - SL4835 907808/CP0300 PRINTED IN USA...
  • Page 75 SL46/4835DX Hydrostatic/Hydraulic Schematic Before SN300119 - SL4635; Before SN400121 - SL4835 PRINTED IN USA 907808/CP0300...

  • Page 76: Sl46/4835 Electrical

    SL46/4835 Electrical Schematic 907808/CP0300 PRINTED IN USA...
  • Page 77 SL46/4835 Electrical Schematic PRINTED IN USA 907808/CP0300...

  • Page 78: Maintenance Schedule

    CHAPTER 11 MAINTENANCE SCHEDULE This Maintenance Interval Chart was developed to match the Service chapter of this manual. Detailed information on each service procedure may be found in the Service chapter. A Maintenance Log follows the Interval Chart for recording the maintenance procedures performed.

  • Page 79: Maintenance Log

    Maintenance Log Date Hours Service Procedure PRINTED IN USA 907808/CP0300...
  • Page 80 Maintenance Log Date Hours Service Procedure 907808/CP0300 PRINTED IN USA...
  • Page 81 Maintenance Log Date Hours Service Procedure PRINTED IN USA 907808/CP0300...

  • Page 82: Index

    INDEX Accelerator Pedal ..... . 19 Emergency Exit ......29 Adjustments .
  • Page 83 Scraping with a Bucket ....42 SL4635 Hydrostatic/Hydraulic ..67 Loader Raising Procedure ....45 Seat Positioning .

  • Page 84: Torque Specifications

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

  • Page 85: Warranty

    Liability for incidental or consequential damages of any type, including, but not limited to lost profits or expenses of acquiring replacement equipment. No agent, employee or representative of Gehl has any authority to bind Gehl to any warranty except as specifically set forth herein. Any of these limitations excluded by local law shall be deemed...
  • Page 86 ® Gehl Company 143 Water Street, P.O. Box 179, West Bend, WI 53095-0179 U.S.A. California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer and birth defects or other reproductive harm.

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Sl4835

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