Marcus Vance, PE
Senior Heavy Machinery & Fleet Maintenance Engineer
Marcus Vance is a Licensed Professional Engineer with 18+ years of fleet management and heavy machinery diagnostics experience across major civil infrastructure projects.
Editorial Role
What Marcus Vance, PE Covers
Marcus Vance, PE contributes practical heavy equipment guidance focused on specs, maintenance intervals, diagnostic workflows, fleet operating costs, and model-to-model comparison decisions. Pages credited here are intended for equipment owners, fleet managers, mechanics, estimators, and buyers who need clear numbers before checking the final OEM manual or dealer documentation.
Technical pages are written to separate verified specification fields from editorial planning estimates such as fuel burn and hourly operating cost. Critical values such as lift capacity, transport dimensions, fluid specifications, torque values, and safety procedures should always be verified against the exact serial range and configuration.
Machine Coverage
Equipment Profiles Referenced by This Author
Published Technical Guides
Maintenance, diagnostics, fleet economics, and equipment comparison articles by Marcus Vance, PE.
Backhoe Loader 500-Hour Maintenance Checklist: Loader, Backhoe, Stabilizers, Tires, Brakes and Fluids
A practical 500-hour backhoe loader maintenance checklist for loader linkage, backhoe boom and dipper pins, stabilizers, tires, brakes, hydraulic oil, filters, cooling and roading records.
Komatsu WA320-8 500-Hour Maintenance Checklist: Loader Linkage, Tires, Brakes and Cooling
A Komatsu WA320-8 500-hour maintenance checklist for loader linkage, tires, brakes, cooling airflow, hydraulics, bucket wear, filters and service records.
CASE 580 Super N WT 500-Hour Maintenance Checklist: Brakes, Stabilizers, Loader Pins and Backhoe Hydraulics
A CASE 580 Super N WT maintenance checklist for brakes, stabilizers, loader pins, backhoe boom, hydraulic leaks, tires, cooling, filters and service records.
CASE 580 Super N WT Brake and Stabilizer Troubleshooting: Roading Pull, Drift, Leaks and Digging Instability
A CASE 580 Super N WT troubleshooting workflow for brake pull, roading vibration, stabilizer drift, hydraulic leaks, backhoe instability and loader-end wear.
Volvo EC220E Hydraulic Overheating Troubleshooting: Hot Oil, Slow Boom, Pump Noise and Weak Travel
Troubleshoot Volvo EC220E hot hydraulic oil, slow boom response, weak travel, pump noise, cooler restriction, low oil, foaming and attachment heat.
Komatsu WA320-8 Hydraulic and Steering Troubleshooting: Slow Lift, Brake Heat, Articulation Play and Loader Drift
Troubleshoot Komatsu WA320-8 slow lift, weak curl, hydraulic heat, steering wander, articulation play, brake heat, tire pull and loader drift.
Volvo L90H 500-Hour Maintenance Checklist: Tires, Brakes, Linkage, Cooling and Snow Duty
A Volvo L90H 500-hour maintenance checklist for loader tires, brakes, linkage, cooling airflow, hydraulic checks, bucket wear, snow duty and service records.
Komatsu WA320-8 Winter and Snow Prep: Tires, Chains, DEF, Cooling and Salt Exposure
Prepare a Komatsu WA320-8 wheel loader for winter snow work with tire checks, chains, DEF handling, coolant, batteries, cutting edges, salt cleanup and records.
Volvo L90H Hydraulic, Brake and Steering Troubleshooting: Slow Lift, Tire Pull and Loader Drift
Troubleshoot Volvo L90H slow lift, weak curl, hydraulic heat, brake pull, steering wander, tire issues, articulation play and loader drift before parts replacement.
Caterpillar 320 Hydraulic System Maintenance & 500-Hour Service Guide
A Cat 320 hydraulic maintenance guide for 500-hour service planning, oil sampling, return filters, hydraulic tank breathers, cooler airflow, work tool plumbing, and undercarriage-linked service records.
Cat 320 Hydraulic Power Loss Troubleshooting: Slow Boom, Weak Travel & Pump Noise
A Cat 320 troubleshooting workflow for slow boom response, weak stick-in, lazy bucket curl, weak travel, pump noise, hydraulic heat, attachment fade, contamination, and pressure-test planning.
Winterizing 20-Ton Excavators: Cold Start, Fuel, DEF & Hydraulic Prep
A Cat 320 winter and seasonal maintenance guide for cold starts, fuel gelling, DEF handling, hydraulic warm-up, batteries, track cleaning, summer cooling airflow, storage and return-to-service checks.