Hydraulic schematics and electrical wiring diagrams anchor the back of this 96-page Gehl RS6-42, RS8-42, RS8-44 operator manual PDF (Form No. 913218), covering all three telescopic handler models. Load zone charts follow them, letting you check boom reach against rated capacity before a load leaves the ground, while a long Safety chapter covers the mandatory shutdown procedure and the personnel work platform system. Dash panel indicators and switches get a chapter of their own, as do lubrication points for the hydraulic reservoir, axle gear oil, transmission and brakes, followed by operator service checks and a standard hardware torque table. Crank no longer than 30 seconds, then wait 2 minutes before trying again; after any wheel comes off, re-torque the nuts until 450 ft.-lbs. (610 Nm) holds. A telehandler parked over one missing figure burns your shift. Text search and bookmarks cover the screen; print the load charts and service pages and let them get greasy on the bench.
What's Inside This Gehl RS6-42, RS8-42, RS8-44 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| International Symbols | 2-3 | Parking Brake, Brake Failure, Hydraulic Oil, Engine Oil Pressure, Transmission Temperature, Steer Modes |
| Introduction | 4-5 | Personnel Work Platform System, Safety Alert Symbol, Machine Identification, Operating Plan |
| Specifications | 6 | Lifting Performance, Steering System, Braking System, Electrical System, Transmission, Hydraulic System |
| Check Lists | 7-9 | Pre-Delivery Inspection, Delivery Checklist, Hydraulic System, Grease Fittings, Wheel Nuts, PWP System |
| Safety | 10-22 | Mandatory Safety Shutdown Procedure, Additional Safety Reminders, Operation Safety Reminders, Servicing Safety Reminders, Personnel Work Platform Safety System |
| Indicators and Controls | 23-31 | Dash Panel Area, Top Row Switches, Middle Row Switches |
| Operation and Adjustments | 32-44 | Starting the Engine, Stopping, Changing Attachment Tools, General Machine Operation, Grade and Slope Precautions |
| Lubrication | 45-47 | Hydraulic System Reservoir, Grease Fittings, Engine Crankcase Oil, Axle Gear Oil, Transmission Oil, Brake System |
| Service and Storage | 48-62 | Dealer Services, Operator Services, Checking Fuel Tank Level, Checking Transmission Oil Level, Checking Personnel Work Platform System |
| Decal Locations | 63-67 | New Decal Application |
| Maintenance | 68-90 | Hydraulic Schematics, Electrical Schematics, Load Zone Charts, Standard Hardware Torque Data |
| Warranty | 95-96 | Warranty Coverage, Genuine Parts, Labor Costs, non-Gehl Warranties, Incidental Damages |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Wheel nuts torque | 450 ft-lbs (610 Nm) | p. 7 |
| Starter cranking limit | 30 seconds | p. 32 |
| Starter restart wait time | 2 minutes | p. 32 |
| Wheel nut torque | 450 ft.-lbs. (610 Nm) | p. 50 |
| Boom slide pad bolt torque | 30 ft.-lbs. (40 Nm) | p. 57 |
| Bottom slide pad replacement thickness | 3/8" (9.5 mm) | p. 56 |
| Fuel tank capacity | 47 gallons | p. 6 |
| Hydraulic tank & system capacity | 47 gallons | p. 6 |
| Engine oil capacity | 14 quarts | p. 6 |
| Tire inflation pressure | 70 psi | p. 7 |
| RS8-44 | ||
| Maximum lift capacity (RS8-44) | 8000 lbs. | p. 6 |
| RS6-42 | ||
| Maximum lift capacity (RS6-42) | 6600 lbs. | p. 6 |
Gehl RS6-42, RS8-42, RS8-44 Common Problems This Manual Covers
Gehl RS6-42, RS8-42, RS8-44 telehandler low engine oil pressure warning comes on, then engine shuts down
Check the engine crankcase oil level first, then work through the low oil pressure troubleshooting on page 33 before restarting. Fill to the proper level; the crankcase holds 14 qts. (13.3 L) per the specifications on page 6. If the warning returns with the oil full, leave the engine off and call your Gehl dealer.
Manual Section: Engine Oil Pressure Troubleshooting p. 33Engine coolant temperature warning comes on during work and the engine shuts itself down
Check the coolant level only after the engine has cooled completely; never open a hot system. Work through the high coolant temperature warning and shutdown steps on page 34 in order rather than guessing. If the warning returns after those checks, shut the machine down and contact your Gehl dealer before running it again.
Manual Section: Engine Coolant Temperature Troubleshooting p. 34Personnel work platform PWP mode lamp flashing with boom controls or transmission de-clutch not responding
Check the PWP operational troubleshooting chart on page 62 and match your exact symptom: flashing mode lamp, parking brake, carriage tilt, auxiliary, de-clutch or boom control failure. Verify the activation and lockout logic next, since transmission and joystick lockout are designed into the system. Do not raise personnel until every PWP check passes.
Manual Section: PWP System Operational Troubleshooting p. 62Air trapped in fuel system after fuel filter replacement, engine cranks but will not start
Verify the fuel tank level first, then bleed the air from the fuel system following the procedure on page 54 before cranking again. Limit each cranking attempt to 30 seconds and wait 2 minutes before the next try, as the starting instructions on page 32 specify.
Manual Section: Fuel System Bleeding p. 54Boom slide pad bolts working loose and bottom slide pads worn thin
Inspect the boom for loose slide pad bolts and torque any you find to 30 ft.-lbs. (40 Nm) as listed on page 57. Measure the bottom slide pads against the 3/8" (9.5 mm) replacement thickness on page 56 and replace them when they reach it. Run the mandatory safety shutdown procedure before you reach in.
Manual Section: Service and Storage p. 57Wheel nuts on a new machine or after a wheel change keep working loose
Torque the wheel nuts to 450 ft.-lbs. (610 Nm) following page 50, and keep re-torquing on new machines or after any wheel removal until that value holds. Check tire inflation at 70 psi on page 7 while you are at it, since both items appear in the check lists.
Manual Section: Service and Storage p. 50Frequently Asked Questions
What are the torque specifications for the wheel nuts on the Gehl RS6-42, RS8-42, and RS8-44?
The wheel nuts on these models must be torqued to 450 ft-lbs (610 Nm). This torque should be maintained on new machines or any time a wheel has been removed. p. 52
What are the engine oil filter replacement specs for the Gehl RS6-42, RS8-42, RS8-44 telescopic handler?
The engine oil filter for the John Deere engine (both mechanical and electronic throttle) is part number 102173. It should be changed at every oil change interval, which is every 250 hours. p. 46
What is the procedure for checking the hydraulic oil level?
The machine must be on level ground with the boom lowered and completely retracted. The fluid must be cool when checking the reservoir level through the sight gauge located on the right side of the front hood. p. 51
What is the main relief pressure for the hydraulic system on the Gehl RS6-42, RS8-42, RS8-44 telehandler?
The main relief pressure for the hydraulic system is 3000 psi (207 bar). This can be checked by plugging a 3000 psi gauge into the test port labeled 'MP' and fully retracting the boom over the relief valve. p. 60
What is the hydraulic reservoir capacity on the Gehl RS6-42, RS8-42, RS8-44 telehandler?
The hydraulic reservoir has a capacity of 47 gallons (178 liters). p. 45
What exactly do I receive with this Gehl RS6-42 Operator Manual?
Delivery is instant: a 96-page searchable PDF is yours the second checkout clears. Laptop, tablet, or phone, all fine.
Can I print a copy of this Gehl RS6-42 Operator Manual for the shop?
You can. Print the sections you want for your own use and keep the file as your backup.
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