One book covers three machines: the Skytrak 8042, 10042, 10054 parts catalog PDF runs 506 pages under OEM ID 8990395, and it applies whichever of those telehandlers is parked in your yard. Exploded views tie every assembly to its factory part number, from the four boom sections and their extend and retract chains to the front axle's limited-slip differential and M-disc brake, broken down assembly by assembly through the longest chapter in the book. Hydraulic schematics trace the boom, frame sway, Stabil-Trak, and outrigger circuits, while harness diagrams map the cab, engine, and outrigger wiring. Order the first boom section wear pad capscrew by its factory number, 8303041, instead of matching threads at the parts counter. When it is just you and a down machine, nobody is coming to read the fiche for you. Bookmarked and text-searchable, it goes where the machine goes.
What's Inside This Skytrak 8042, 10042, 10054 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Frame & Attaching Parts | 9-26 | Main Frame Components, Hoods & Guards, Outrigger Mounting |
| Boom | 27-56 | First Boom Section, Second Boom Section, Third Boom Section, Fourth Boom Section, Quick Attach, Extend Chains, Retract Chains |
| Attachments | 57-100 | Buckets, Tilt Carriage, Side Tilt Carriage, Swing Carriage, Sheet Material Handler, 3’ Truss Boom W/Winch, 12’ Truss Boom W/Winch, Truss Boom |
| Engine & Attaching Parts | 101-148 | Engine Mounting, Fuel System, Radiator & Oil Cooler Mounting, Air Cleaner Assembly, Exhaust System, Isolation Coupler |
| Drive Train | 149-268 | Components, Front Axle, Front Axle - Input, Front Axle - Limited Slip Differential, Front Axle - Axle Casing, Front Axle - M-Disc Brake, Front Axle - Brake |
| Cab | 269-296 | Open Cab, Closed Cab, Soft Cab Enclosure, Door, Operators Seat, Front Windshield Wiper, Skylight Windshield Wiper, Heater |
| Controls | 297-318 | Service Brake Pedal Control, Throttle Pedal Control, Steering Wheel & Shifter, Control Console, Boom Lift/Lower & Extend/Retract Control, Frame Sway & Attachment Tilt Control |
| Hydraulic Circuits | 319-366 | Service Brake & De-Clutch, Boom Lift/Lower & Extend/Retract, Attachment Tilt & Slave, Frame Sway & Stabil-Trak, Outriggers, Power Steering, Control Valve, Auxiliary Hydraulic |
| Hydraulic Components | 367-428 | Extend/Retract Cylinder, Lift/Lower Cylinder, Attachment Tilt Cylinder, Frame Sway Cylinder, Stabil-Trak Cylinder, Slave Cylinder, Outrigger Cylinder, Gear Pump |
| Electrical | 429-448 | Cab Harness, Engine Harness, Outrigger Harness |
| Decals | 449-454 | Gooseneck Decal, Model Number Decal, Frame Stripe Decal, Engine Door Stripe, Electrocution Hazard Decal, Tip Over Hazard Decal |
| Options | 455-486 | Worklight System, Roadlight System, Swing Carriage Cylinder, Side Tilt Carriage Cylinder, Fender Installation, Rotating Beacon Installation, First Boom Section Service Kit |
| Recommended Spare Parts | 487-490 | Boom Assembly, Engine, Drive Train, Hydraulic System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| HD HEX Capscrew (Item 9) torque | 31 lb-ft | p. 28 |
| HEX HD Capscrew (Item 26) torque | 31 lb-ft | p. 28 |
| First Boom Section Wear Pad Bolt Torque | 31 lb-ft | p. 33 |
| Steering Column Nut Torque | 50 lb-ft | p. 307 |
| Steering Column Bolt Torque | 13 lb-ft | p. 307 |
| Attachment Tilt Cylinder Counterbalance Valve Torque | 30-35 lb-ft | p. 383 |
| Frame Sway Cylinder Head Gland Torque | 300-400 lb-ft | p. 389 |
| Frame Sway Cylinder Piston Locknut Torque | 1100-1250 lb-ft | p. 389 |
Skytrak 8042, 10042, 10054 Common Problems This Manual Covers
SkyTrak 8042 boom wear pad part numbers unknown, pads worn thin and boom shifts left while extending
Check the boom parts diagram on page 28 and match the wear pad item numbers to the parts number list on page 29. Order the matching capscrews, part 8303041, and reinstall them with Loctite, torqued to 31 lb-ft per the wear pad bolt spec on page 33. Verify quantities against your serial number range.
Manual Section: Boom p. 28Frame sway cylinder weeping at the head gland, need gland and piston locknut part numbers
Verify the cylinder breakdown in the Hydraulic Components section starting on page 367, then order head gland part 8035324 and hex locknut part 8035322 from the listing on page 389. That same page calls out gland torque of 300-400 lb-ft and locknut torque of 1100-1250 lb-ft with Loctite for reassembly.
Manual Section: Hydraulic Components p. 389Attachment tilt cylinder drifts down under load, need the counterbalance valve part number before ordering
Check the attachment tilt cylinder parts list on page 383. The counterbalance valve is part 8035321, rated 4000 PSI, with an installation torque of 30-35 lb-ft printed right in the listing. Match the item number on the exploded view to your cylinder, and confirm your serial number range with the parts index before ordering.
Manual Section: Hydraulic Components p. 383Driveline vibration after transmission work, unsure which drive shaft screws are single-use and what kit replaces them
Replace the engine-to-transmission drive shaft screws with kit 8880218-OM; the parts listing on page 261 in the Drive Train section marks them replace-when-removed, do not re-torque. Torque the new screws to 32-42 lb-ft on installation. Count the fasteners on the exploded view first so one kit covers the full set.
Manual Section: Drive Train p. 261Steering wheel loose on the column, need the column nut and mounting screw part numbers
Check the steering column breakdown on page 307 in the Controls section. Order column nut part 8305916 and flange head capscrews part 8303534. The listing shows 50 lb-ft torque for the nut and 13 lb-ft for the capscrews on reassembly. Match the exploded view item numbers to your cab configuration before ordering.
Manual Section: Controls p. 307Frequently Asked Questions
What is the torque specification for the outrigger mounting bolts on the Skytrak 8042, 10042, 10054?
The torque specification for the outrigger mounting bolts (part number 8310475 or 1001106346) is 260 lb-ft. p. 23
What is the torque specification for the boom lift/lower cylinder piston on the Skytrak 8042, 10042, 10054?
The piston for the boom lift/lower cylinder must be torqued to 390-460 lb-ft. p. 369
What is the torque specification for the attachment tilt cylinder piston locknut on the Skytrak 8042, 10042, 10054?
The attachment tilt cylinder piston locknut (part 8035308) is installed with Loctite and torqued to 1850-2000 lb-ft. The parts breakdown for that cylinder is on page 383. p. 383
What is the torque specification for the frame sway cylinder head gland on the Skytrak 8042, 10042, 10054?
The head gland for the frame sway cylinder must be torqued to 300-400 lb-ft. p. 389
What is the torque specification for the outrigger cylinder counterbalance valve on the Skytrak 8042, 10042, 10054?
The counterbalance valve for the outrigger cylinder must be torqued to 30-35 lb-ft. p. 405
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