Service Truck Crane (STC) Exam Prep for Alabama Field Mechanics

Topics in the prep

• What separates a service truck crane from a full boom truck
• Capacity charts for short telescopic booms and their deductions
• Radio remote and pendant control from the ground
• Outrigger use on shop floors, gravel pads and job site dirt
• Rigging engines, transmissions, pumps and components
• Pre-use inspection of hydraulics, wire rope and the hook
• Hand signals and coordinating with a helper
• Which agency and which rule governs the lift you are making

Who in Alabama is running these cranes

Look at a dealer's service fleet, a road builder's equipment yard or a plant maintenance contractor's trucks and you will find telescopic service cranes on nearly all of them. Field mechanics use them to remove and replace heavy components where there is no shop hoist. Municipal water departments, rural water systems and well drillers use them to pull pumps. Mills along the Tombigbee and Alabama rivers keep service trucks moving between buildings. Plenty of people who never think of themselves as crane operators are, in fact, making crane lifts every week.

What the restricted card does and does not let you run

TSS-STC is a restricted version of NCCCO's Telescopic Boom, Fixed Cab (TSS) mobile crane certification. NCCCO describes the target machines as having booms of roughly 10 to 35 feet and capacities of about 1 to 7 tons, typically run by radio remote or pendant with the operator on the ground following the load.

An STC holder may operate service truck cranes only, not larger boom trucks or other telescopic cranes. Going the other way, anyone who holds full TSS certification can already run service truck cranes and is awarded the STC designation automatically. If there is a chance you will be moved to a bigger boom truck, the full mobile crane path with TSS may serve you better.

The practical, with a remote in your hand

The STC practical is modeled on the TSS practical and adapted to smaller cranes and ground-level control. NCCCO describes five main tasks that build in difficulty. Expect to be tested on:

• Inspecting the equipment before use
• Hoisting, booming and swinging with and without a load
• Following hand signals given by another person
• Combined, multi-function movements
• Keeping the load under control while you walk with it

Small crane, still under Subpart CC

NCCCO points out that service truck cranes are still doing lifting covered by OSHA's 29 CFR 1926 Subpart CC when they work on construction sites, including material delivery. Alabama issues no state crane license, so on private construction work the federal rule is what counts: certification through an accredited body and an employer evaluation on the crane you will run.

Two exceptions matter here. Equipment rated at 2,000 pounds or less falls under 1926.1441, which requires training rather than certification. And if your service truck works at a coal mine, limestone quarry or sand and gravel pit, MSHA rules apply there instead of OSHA's construction crane standard. Plant maintenance in general industry is governed by OSHA's Part 1910 rules, and many employers simply require the certification across the board so a truck can go anywhere.

Studying on a service route

Service techs work odd hours and long drives. Lessons open on a phone or tablet and pick up where you left off, so a chart exercise can fit into a wait at a parts counter or a hotel night on a breakdown call. The material follows the written exam's content domains, and practice questions help you spot the areas to review. Shops that want several techs certified can set up a group through the enrollment form.