Diagnosing the control system on a Toucan mast boom humbles plenty of good techs, so it matters that the JLG Toucan E18MJ and E26MJ Service and Maintenance Manual PDF (116 pages, OEM ID 31210019) gives its largest section to that fight: sensors, motor speed controller, electronic modules, and a help-with-diagnosis chapter for both aerial platforms. Electrical circuit overviews and harness wiring schematics close out the book, letting you trace a dead function from the synoptic switchboard down to a single connector pin. Hydraulic schematics and procedures walk every manifold on the machine: functions, motor supply, differential locking, brake, and steer. Spec both hydraulic filters at 10 micron filtration, and torque the swing bearing inner race screws to 86 lb ft (117 Nm) before you close it up. A parked boom earns nothing while you hunt numbers. This bookmarked, text-indexed PDF travels on any screen you bring to the machine.
What's Inside This JLG TOUCAN E18MJ, TOUCAN E26MJ Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction - Maintenance Safety Precautions | 3-6 | Hydraulic System Safety, Maintenance, Revision Log |
| Specifications | 7-10 | Capacities, Component Data, Performance Data, Torque Chart, Lubrication, Major Component Weight, Serial Number Locations |
| General | 11-20 | Machine Preparation, Inspection and Maintenance, Servicing and Maintenance Guidelines, Preventive Maintenance, Pressure Settings, Cylinder Drift Test |
| Chassis | 21-26 | Drive Motors, Steering Knuckles, Non-Drive Hubs, Steer Cylinder, Tires and Wheels |
| Turntable and Vertical Mast | 27-46 | Swing Bearing, Swing Gear Box, Mast Profile Lubrication, Rollers, Lifting Chains, Pulley - Pulley Support, Mast Cylinder Removal and Installation |
| Jib and Platform | 47-48 | Jib Articulation Lubrication, Jib Cylinder Removal and Installation |
| Hydraulics | 49-68 | Hydraulic Oil Tank, Hydraulic Filters, Hydraulic Pump / Electric Motor Assembly, Hand Pump, Functions Manifold, Motor Supply Manifold, Differential Locking Manifold, Brake Manifold |
| Battery / Charger | 69-78 | Battery, Charger |
| Electric - Control System | 79-104 | Sensors, Motor Speed Controller, Synoptic Switchboard, Help with the Diagnosis, Electronic Modules, Circuit Protection, Clipper Connector Installation Procedure |
| Schematics | 105-116 | Electrical Circuit Overviews, Harnesses Wiring |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Inner race attachment socket head cap screws torque | 86 lb ft (117 Nm) | p. 27 |
| Outer race attachment hex. head cap screws torque | 86 lb ft (117 Nm) | p. 27 |
| Return filter filtration rate | 10µm | p. 50 |
| Pressure filter filtration rate | 10µm | p. 50 |
| Battery capacity E18MJ | 280 Ah | p. 73 |
| Battery capacity E26MJ | 620 Ah | p. 73 |
| Tilt sensor chassis incline | 4.2 to 4.8° | p. 82 |
| Hydraulic Oil Tank Capacity | 5.8 gallons | p. 7 |
| TOUCAN E18MJ | ||
| Machine Weight | 5832 lbs | p. 7 |
| Max. Platform Height | 18.1 ft | p. 7 |
| TOUCAN E26MJ | ||
| Machine Weight | 7938 lbs | p. 7 |
| Max. Platform Height | 26 ft | p. 7 |
JLG TOUCAN E18MJ, TOUCAN E26MJ Common Problems This Manual Covers
JLG Toucan E18MJ hydraulic pump whines under load, platform lift slow and jerky
Check the hydraulic tank oil level and top off; capacity is 5.8 gallons, page 7. Relieve system pressure per the safety procedure on page 3 before opening any line. Test main relief pressure and confirm 3480 psi, page 16. Replace clogged return and pressure filters with 10 micron elements, page 50.
Manual Section: Hydraulics p. 49Batteries won't hold a charge overnight and the machine dies halfway through a shift
Check electrolyte gravity in each cell with a hydrometer; a fully charged battery reads 1.280 kg/l, page 70. Recharge and retest any lagging cells, then load test the pack. Clean and tighten battery cable connections at the posts and controller studs following the battery service procedures starting on page 69.
Manual Section: Battery / Charger p. 70Tilt alarm sounds on level ground and drive functions cut out from the platform
Verify the machine sits on a known level surface, then run the tilt sensor check. Adjust sensor symmetry so the alarm trips only between 4.2 and 4.8 degrees of chassis incline, page 82. If the alarm still sounds, inspect sensor wiring and the connector, then verify actuation per the control system section starting on page 79.
Manual Section: Electric - Control System p. 82Drive motor makes grinding noise, machine drives irregularly or won't move at all
Check hydraulic oil level and inspect the motor supply hoses for leaks or crushing. Remove the wheel and inspect the motor for external leaks at the shaft seal. If you pull the motor, torque the mounting screws to 70 to 76 lb ft (96 to 104 Nm) on reinstall, page 19, and follow chassis procedures on page 21.
Manual Section: Chassis p. 21Platform controls completely dead but ground controls work fine, joystick gives no response
Check the 7 amp panel mounted circuit breaker and the 325 amp power circuit fuse, page 100. Test the safety interlock circuit; the interlock connection is rated 0.5A at 24 VDC, page 77. Trace joystick wiring against the diagram on page 105 and inspect connectors for corrosion or backed-out pins.
Manual Section: Electric - Control System p. 100Frequently Asked Questions
What are the torque specifications for bolts on the JLG Toucan E18MJ and E26MJ?
The torque specifications for bolts depend on the grade and size. For example, an 8.8 grade M10 bolt requires 44 N.m (32.5 lbf ft), while a 12.9 grade M10 bolt requires 75 N.m (55.3 lbf ft). Detailed torque values for various bolt sizes and grades are provided in the torque chart on page 8. p. 8
What is the hydraulic oil tank capacity for the JLG Toucan E18MJ and E26MJ?
The hydraulic oil tank capacity for both the E18MJ and E26MJ models is 5.8 gallons (22 liters). The total hydraulic system capacity is approximately 8 gallons (30 liters). p. 7
How often should the swing bearing race be lubricated?
The swing bearing race must be re-lubricated every 250 hours of machine operation. This is specified in the lubrication chart on page 9. p. 9
What is the procedure for adjusting the relief valve setting on the JLG Toucan?
To adjust a relief valve, loosen the setting screw locknut. Turn the setting screw IN (CW) to increase pressure or OUT (CCW) to decrease pressure. Tighten the locknut while holding the setting screw in place and re-check the pressure. p. 16
What is the torque spec for the drive motor mounting screws on the JLG TOUCAN E18MJ, TOUCAN E26MJ?
The drive motor mounting screws must be torqued to 70 to 76 lb ft (96 to 104 Nm) when installing the motor onto the chassis mounting plate. p. 21
Is this JLG Toucan E18MJ manual a download or a disc?
Instant PDF download. You get the full 116-page searchable Service and Maintenance Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
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