A broken Thieman liftgate can disrupt your entire supply chain.
At El Camiones Lift Gate & Diesel Repair LLC, we provide expert Thieman liftgate repair and installation services throughout Chicago, Northwest Indiana, and Southern Wisconsin. Our technicians specialize in hydraulic system overhauls, electrical diagnostics, and structural repairs for fleets, semi-trucks, and box trucks. Whether you need an emergency mobile fix or a complete new installation, we ensure your Thieman equipment operates with the reliability and power your business demands.
📞 Need Immediate Thieman Liftgate Service?
Call (312) 538-7130 or (219) 400-4020
- Thieman Liftgate Services
Common Thieman Services
We provide a full range of maintenance and repair solutions for all Thieman hydraulic systems:
- Hydraulic Leak Repair: Identifying and fixing leaking cylinders, fittings, and high-pressure hoses.
- Electrical Wiring & Shorts: Diagnostic services for 150 amp circuit breakers, solenoids, and master toggle switches.
- Pump & Motor Replacement: Installation of 12V DC motors and complete hydraulic power units.
- Cylinder Rebuilds: Re-sealing 2″ bore lift cylinders to restore smooth, level operation.
- Platform & Structure Repair: Straightening bent members and repairing cracked welds to ensure safety.
- Preventive Maintenance: Regular lubrication of maintenance-free Teflon composite bushings and fluid flushes.
📞 Call Now for Same-Day Thieman Liftgate Repair
Schedule a Free lift gate inspection & maintenance check-up.
No Credit Card Required.
Same-day service available. Call now.
- Thieman Liftgate Models
Thieman Models We Service
Our team is qualified to work on the entire Thieman product catalog, from light-duty pickup lifts to heavy-duty railgates:
Stowaway Series: Including M, MDC, and MLB models designed for limited space.
Railgate Series: High-capacity TVL, TVLR, and TDR models for heavy cycling.
Conventional Series: The reliable TWL and WT models for stake beds and flatbeds.
Toplifter & Pickup Series: Specialized TT-12 and TT-15 models for service bodies.
Sideloaders: Precision maintenance for curbside delivery applications.
If your Thieman Liftgate model is not listed, contact us — we service all Thieman Liftgate configurations.
Click here to visit Thieman Liftgate official website for entire productline.
📞 Call Now for Same-Day Thieman Liftgate Repair
- Thieman Liftgate parts available - New or used
Parts We Sell for Thieman Liftgates
We maintain a large local inventory of genuine Thieman parts to ensure the fastest repairs in the Midwest:
- Power Units & Motors: Replacement 12V DC motors and gravity-down or power-down units.
- Hydraulic Components: Lift cylinders, damper cylinders, and high-pressure hose assemblies.
- Electrical Controls: Molded toggle switches, motor start solenoids, and 150 amp breakers.
- Structural Hardware: Torsion bars, pivot pins, sprocket housings, and polylube bushings.
- Service Kits: Complete maintenance kits including nylon wear pads and hairpin cotters.
Common Thieman Parts That Fail
Early identification of these common issues can prevent dangerous equipment failure:
- Motor Start Solenoids: Often fail due to high-cycle use or electrical surges, leading to an unresponsive gate.
- Hydraulic Hoses: Constant movement and exposure to Chicago road salt lead to cracking and fluid leaks.
- Molded Toggle Switches: External switches are highly susceptible to corrosion and moisture intrusion.
- Torsion Bars: Fatigue in the platform assist springs can make folding the platform difficult and unsafe.
- Locking Cams & Pins: Damaged safety latches can prevent the platform from securing properly during transit.
📞 Call Now for Same-Day Thieman Liftgate Repair
📞 Call Now for Same-Day Thieman Liftgate Repair or installation
- We've done more lift gate jobs yearly than anyone in Chicago and Indiana.
Chicago Service Area
We provide 24/7 mobile Thieman repair throughout the following regions:
- Chicago, IL
- Cicero, IL
- Joliet, IL
- Hammond, IN
- Gary, IN
- Merrillville, IN
- Aurora, IL
- Kenosha, WI
- Milwaukee, WI
- Skokie, IL
FAQs: Thieman Liftgate Repair
What oil should I use in my Thieman liftgate?
Thieman recommends using Dexron III automatic transmission fluid (ATF) for their power units.
Why is my Thieman liftgate motor humming but not lifting?
This typically indicates low battery voltage, a faulty solenoid, or a mechanical bind in the lift structure.
Do you offer emergency mobile Thieman repair in Chicago?
Yes, El Camiones provides 24/7 mobile service for fleets and trucks across the entire tri-state area.
How much weight can a Thieman liftgate handle?
Weight limits vary by model, generally ranging from 1,000 lbs to 6,600 lbs.
How often should I have my Thieman railgate inspected?
We recommend monthly inspections of hydraulic levels and pivot points, with a professional service check every 3-6 months.
- For Fast Thieman Liftgate Repair or Parts:
📞 Call Now for Same-Day Thieman Liftgate Repair
Other Brands We Work With:
- WHY TRUCK OWNERS CHOOSE US
Drivers Across Chicago, Indiana & Wisconsin Trust Us
At El Camiones, we take pride in quality workmanship, transparent pricing, and keeping drivers safe, compliant, and earning.
Your truck isn’t just equipment — it’s your income. We treat it that way.
- 120+ satisfied truck owners this year
- Licensed, Insured, and OEM certified
- Fast, honest, and professional service
- Free Lift Gate Inspection
- Same-Day Repairs Available
- 5-Star Rated