IKEA TROTTEN 104.916.15 Underframe instructions manual

The IKEA TROTTEN 104.916.15 Underframe is a sturdy, height-adjustable desk underframe designed for stability and ergonomic flexibility. It supports various tabletop sizes, features smooth height adjustment mechanisms, integrated cable management, and a robust steel construction with a powder-coated finish. Below are key sections for safety, assembly, adjustment, use, maintenance, and troubleshooting.

1. Features at a Glance 2. Package Contents 3. Safety Instructions 4. Assembly Instructions 5. Height Adjustment 6. Cable Management 7. Weight Capacity & Specifications 8. Care & Maintenance 9. Troubleshooting 10. Warranty & Support

Features at a Glance

Key components: Steel frame with powder-coated finish, Height adjustment mechanism, Cable management tray, Leveling feet, Mounting brackets for tabletop.

FeatureDescription
Height adjustment rangeAdjustable from 65 cm to 85 cm (25.6" to 33.5")
Frame materialPowder-coated steel for durability
Cable managementIntegrated tray and clips for organizing cables
Leveling feetFour adjustable feet for stability on uneven floors
Tabletop mountingUniversal brackets compatible with various IKEA tabletops
Weight capacitySupports up to 100 kg (220 lbs) evenly distributed
Adjustment mechanismSmooth crank handle or electric lift (depending on model)
Crossbar stabilityReinforced crossbar for reduced wobble
Finish optionsAvailable in black, white, and silver
Warranty10-year limited warranty

Package Contents

Unpack and verify all parts before assembly.

  1. Main underframe (left and right sides)
  2. Crossbar (1 piece)
  3. Adjustment mechanism (crank handle or motor unit)
  4. Cable management tray
  5. Mounting brackets and screws
  6. Leveling feet (4 pieces)
  7. Assembly tools (Allen key included)
  8. Instruction manual

WARNING! Check for damaged parts before assembly. Do not use if any component is broken or missing.

Safety Instructions

Read all instructions before assembly and use.

  1. Assembly: Use two people for assembly; frame is heavy.
  2. Stability: Ensure all screws are tightened securely.
  3. Weight limit: Do not exceed 100 kg maximum load.
  4. Placement: Use on flat, stable surface; adjust leveling feet if needed.
  5. Children: Do not allow children to play with adjustment mechanism.
  6. Inspection: Regularly check for loose screws or damage.

CAUTION! Keep fingers clear of moving parts during height adjustment.

Assembly Instructions

Estimated assembly time: 30-45 minutes. Tools needed: Allen key (included), Phillips screwdriver.

  1. Attach leveling feet to each leg of the frame.
  2. Connect the crossbar between the two frame sides using provided bolts.
  3. Install the height adjustment mechanism (crank or motor) according to diagram.
  4. Mount the cable management tray to the crossbar.
  5. Place the tabletop upside down on a soft surface.
  6. Position the assembled underframe onto the tabletop.
  7. Secure the underframe to the tabletop using mounting brackets and screws.
  8. Carefully flip the desk upright.
  9. Adjust the leveling feet to ensure stability.

Tip: Do not fully tighten all screws until the entire frame is assembled to allow for alignment.

Height Adjustment

Manual crank model: Turn crank clockwise to raise, counterclockwise to lower.

  1. Clear the area around the desk before adjusting.
  2. Turn the crank smoothly; do not force if resistance is felt.
  3. Stop when desired height is reached.
  4. For electric model: Use the up/down buttons on the control panel.
  5. Programmable memory (electric model): Hold button to set preferred heights.

WARNING! Do not adjust height while the desk is heavily loaded or unevenly weighted.

Cable Management

Use the integrated tray and clips to organize cables.

  1. Route power strips and excess cable into the management tray.
  2. Use adhesive clips along the frame legs to secure vertical cables.
  3. Leave some slack in cables to allow for height adjustment.
  4. Ensure cables do not interfere with moving parts.

Tip: Label cables for easy identification when reconfiguring.

Weight Capacity & Specifications

Care & Maintenance

Clean with damp cloth; avoid abrasive cleaners.

  1. Wipe frame with soft, damp cloth to remove dust.
  2. For stubborn marks, use mild soap solution.
  3. Dry immediately with clean cloth.
  4. Monthly: Check and tighten all screws and connections.
  5. Every 6 months: Inspect adjustment mechanism for smooth operation.

CAUTION! Do not use harsh chemicals, solvents, or abrasive pads that may damage the finish.

Troubleshooting

SymptomPossible CauseCorrective Action
Desk wobblesUneven floor or loose screwsAdjust leveling feet; tighten all frame and bracket screws.
Height adjustment stiffDebris in mechanism or misalignmentClean track; ensure frame is square; lubricate if recommended.
Crank not workingDisconnected or damaged mechanismCheck crank connection; ensure set screw is tight.
Electric model not movingPower issue or overloadCheck power connection; reduce load on desk; reset if possible.
Squeaking noiseMetal friction or loose partsTighten all connections; apply silicone-based lubricant to moving parts.
Tabletop not levelUneven mounting or floorLoosen brackets, reposition tabletop, retighten; adjust leveling feet.

Reset electric model: Unplug for 30 seconds, then reconnect.

Warranty & Support

10-year limited warranty covering manufacturing defects. Warranty does not cover damage from misuse, improper assembly, or normal wear. For support, contact IKEA customer service or visit the IKEA website with your product number (104.916.15).

Contact: IKEA Customer Support: 1-800-434-4532 (US) or visit www.ikea.com

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