South Florida
JLG Boom Lift Won't Start? Causes, Checks and Common Problems
A JLG boom lift that cranks but won't start, or won't crank at all, usually comes down to fuel, air, compression or electrical. Here is what our mobile mechanics check first, plus the other problems we see most on JLG boom lift equipment.
South Florida
Why a JLG Boom Lift Won't Start
Dead or weak batteries and corroded cables, a failed starter or relay, air in the fuel system, clogged fuel filters, a bad lift pump, seat and neutral safety switches, glow plug or intake heater faults, and low compression on high-hour engines. Other searches we hear about JLG boom lift: won't start, not starting.
600+
Service Calls Per Year
282
Reoccurring Clients
JLG Diagnostics
Platform, ground control and drive faults on the JLG lift diagnosed with manufacturer software.
JLG Won't Raise or Lower
Hydraulic, electrical and interlock faults that stop the JLG lift from raising or lowering repaired.
JLG Hydraulic Repair
Lift, extension, jib and leveling cylinders, pumps and hoses on the JLG lift repaired.
JLG Drive & Steer Repair
Drive motors, hubs, steer cylinders and controls on the JLG lift repaired.
JLG Control Box Repair
Platform and ground control boxes, joysticks and harnesses on the JLG lift repaired.
JLG Engine Repair
Diesel or gas engines on the JLG lift repaired, including no-starts and power loss.
JLG Battery & Charger
Batteries, chargers and wiring on electric JLG lift units tested and replaced.
JLG Annual Inspection
Annual and frequent inspections on the JLG lift documented to keep it in service.
Lift & Extension Cylinders
Cylinder resealing on the JLG lift.
Hydraulic Pump & Valves
Pump and valve repair.
Drive Motors & Hubs
Drive system repair on the JLG lift.
Platform Controls
Joystick and control box repair.
Ground Controls & ECM
Controller and harness repair.
Engine
Diesel and gas engine repair.
Batteries & Charger
Electric drive battery service.
Turntable & Slew Ring
Rotation system repair on the JLG lift.
Leveling & Safety Systems
Tilt sensor and interlock repair.
CITY
Reach Out?
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Yes. Our diesel mechanics provide mobile, on-site heavy equipment repair throughout South Florida. We service equipment directly at job sites to reduce downtime and avoid unnecessary transport.
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Response times vary based on location and workload, but our mobile diesel mechanics aim to provide prompt service to diagnose and repair equipment as efficiently as possible.