One axle rebuilt to factory tolerance is what you get out of the 242 pages in this Gehl Dana 212 axle maintenance and repair manual PDF (Form No. 913266), written for the axle on Gehl RS5-34, RS6-42 and RS8-42/44 and Mustang 634, 642, 842 and 844 machines. Planetary reduction, differential unit and bevel pinion work take up the biggest share of the book, and each job runs from removal through adjustment and installation. Braking faults and differential lock problems have their own troubleshooting charts. The optionals section covers parking brakes, negative hydraulic brakes, 25% and 45% limited slip differentials and the 602 reduction gear. Replace the brake discs when the lining is down to 4.5 mm, and torque the steering cylinder pin nuts to 260-290 Nm. One missing torque figure can stop a rebuild cold. It's bookmarked, text searchable and bought once, so this PDF stays yours for as long as you run that machine.
What's Inside This Gehl Dana 212 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 5-6 | Data Plate, Maintenance Points, Maintenance Intervals, Adjustment and Checks, Conversion Tables, Tightening Torques |
| Maintenance and Lubricant | 7-12 | Definition of Viewpoints, Data Plate, Maintenance Points, Maintenance Intervals, Adjustment and Checks, Conversion Tables, Tightening Torques, Screw-Locking |
| Notes on Safety Precautions | 13 | |
| Checking Wear and Replacing the Braking Disks | 14-21 | Disassembly of Braking Units, Assembly of Braking Units |
| Steering Case | 22-29 | Removal of Steering Case, Installation of Steering Case |
| U-Joint | 30-39 | Removal of U-Joint, Installation of U-Joint |
| Planetary Reduction | 40-55 | Disassembly of Planetary Reduction, Assembly of Planetary Reduction |
| Steering Cylinder | 56-73 | Steering Bars, Articulation Pins, Centring Sensor, Piston, Snap Ring |
| Differential Unit | 74-91 | Removal of Differential Unit, Assembly of Differential Unit |
| Bevel Pinion | 92-109 | Removal of Bevel Pinion, Installation of Bevel Pinion |
| Special Tools | 110-116 | T1, T2, T3, T4, T5, T6, T7, T8 |
| Troubleshooting | 117-126 | Braking System Troubleshooting, Differential Lock Troubleshooting |
| Mechanical Parking Brake | 127-135 | Mechanic Parking Brake Unit, Steering Cylinder, Braking Disks, Whole Piston, Thrust Levers, U-Joint |
| External Hydraulic Negative Brake | 136-143 | Cylinder Assembly, Piston, Spring Seat, Braking Levers, Fulcrum Pin |
| External Hydraulic Negative Brake with Quick Release | 144-155 | External Hydraulic Negative Brake, Check Unit, Cylinder Set, Piston, Spring Seat, Spring |
| Incoming Drum Brake | 156-163 | Drum Brake, Shoe Assembly, Brake Support, Bevel Pinion, Flange, Distance Piece |
| Inch Incoming Brake (2 and 3 Function Versions) | 164-177 | Removal, Disassembly, Assembly, Installation, Brake Piston, Brake Discs |
| Limited Slip Differential Unit (25% and 45%) | 178-195 | Removal, Disassembly, Assembly, Installation, Friction Units, Planet Gears |
| Hydraulic Differential Lock | 196-205 | Removal, Disassembly, Assembly, Installation, Differential Lock Piston, Fork |
| Incorporated Reduction Gear and Pinion (602) | 206-242 | Removal, Disassembly, Assembly, Installation, Reduction Gear, Pinion, Bearings |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Torque wrench setting for nuts (ball-and-socket joints) | 42-52 Nm | p. 64 |
| Torque wrench setting for nuts (articulations) | 298-328 Nm | p. 64 |
| Brake lining minimum thickness | 4.5 mm | p. 14 |
| Steering cylinder pin nut torque | 260-290 Nm | p. 60 |
| Brake disc pack load | 1000 kg | p. 238 |
| Arm fix quote | 68 mm | p. 238 |
| Negative brake pressure | 15-30 bar | p. 234 |
| Negative brake stud torque | 30 ± 45 Nm | p. 234 |
Gehl Dana 212 Common Problems This Manual Covers
Gehl RS8-42 axle braking disks worn with insufficient braking at the wheels
Remove the braking units and measure the lining on each braking disk following the wear check on page 14. Replace any disk below the 4.5 mm minimum thickness. Use the exploded view on page 16 to keep the stack order straight on reassembly, then confirm the fix against the braking troubleshooting chart on page 117.
Manual Section: Checking Wear and Replacing the Braking Disks p. 14Axle service brakes overheating during operation with steady loss of brake fluid from the system
Check the braking system troubleshooting chart starting on page 117, and work the entries for overheating and loss of brake fluid. Remove the braking units and inspect each disk against the 4.5 mm minimum lining on page 14. Replace worn disks and reassemble the braking units following the documented assembly sequence.
Manual Section: Braking System Troubleshooting p. 117Hydraulic differential lock inoperative, diff-lock will not engage when hydraulic control is applied
Check the hydraulic control side first using the differential lock troubleshooting steps in the Troubleshooting section. If the hydraulic control checks out, remove the hydraulic differential lock following page 196 and inspect the differential lock piston and fork. Replace damaged parts, reassemble, and reinstall per the same section before retesting.
Manual Section: Hydraulic Differential Lock p. 196Axle noise during coast or under power, plus noise during turns and stick-slip noise
Check when the noise shows up: on coast, under power, or only in turns. Match that to the noise troubleshooting entries in the Troubleshooting section before pulling anything. If the diagnosis leads into the center of the axle, follow the differential unit removal on page 74 or the bevel pinion removal on page 92.
Manual Section: Noise TroubleshootingSteering cylinder ball-and-socket joints needing adjustment, wheel convergency out of spec after steering cylinder reassembly
Adjust convergency by rotating the ball-and-socket joints following page 64, then verify the articulations move freely. Lock the collars with the nuts at 42-52 Nm. Hold the articulations still for the second adjustment and lock those nuts at 298-328 Nm. Torque the cylinder pins in the steering case to 260-290 Nm per page 60.
Manual Section: Steering Cylinder p. 64Frequently Asked Questions
How often should the wheel nuts on the Gehl Dana 212 axle be tightened?
Tighten the wheel nuts every 200 hours. The maintenance intervals table lists it under adjustment and checks. p. 8
What is the minimum braking disk thickness on the Gehl Dana 212 axle?
The minimum thickness for the braking disks is 4.5 mm. If the disks are worn below this, they must be replaced. p. 14
What torque do the arm-to-central-body screws take on the Gehl Dana 212 axle?
The screws fixing the arm to the central body must be tightened to 298 Nm using a cross-tightening method. p. 20
What torque do the Gehl Dana 212 axle braking unit pin screws take?
The pin screws (10) for the steering cylinder must be tightened to 5-7 Nm after applying Loctite 270 to the thread. p. 18
What torque do the Gehl Dana 212 steering case articulation pin screws take?
The fittin screws (15) and (8) for the articulation pins must be tightened to 140 Nm. p. 26
How is this Gehl Dana 212 Axle Maintenance and Repair Manual delivered?
You download the manual yourself: 242 pages, searchable PDF, available immediately. Keep a copy on every device you use.
Can I print a copy of this Gehl Dana 212 Axle Maintenance and Repair Manual for the shop?
Printing is allowed without restriction. Pull the pages you need for the job and bin them when they get greasy.
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