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.
Cat 950 GC 500-Hour Maintenance Checklist: Loader Hydraulics, Axles, Brakes, Tires and Bucket Pins
A Cat 950 GC 500-hour maintenance checklist for loader hydraulics, Cat C7.1 service, fuel quality, axles, brakes, 23.5R25 tires, bucket linkage, cooling airflow, and work-order notes.
Cat 950 GC Transmission and Hydraulic Troubleshooting: Slow Lift, Weak Bucket, Hot Oil and Shift Problems
A Cat 950 GC troubleshooting workflow for slow lift, weak bucket curl, hot hydraulic oil, rough shifts, axle or brake drag, steering complaints, tire issues, and production loss.
Cat 950 GC Seasonal Maintenance Guide: Winter Starts, Snow Work, Summer Dust and Yard Storage
A Cat 950 GC seasonal maintenance guide for winter diesel, batteries, snow bucket work, tire pressure, summer radiator dust, cooling airflow, yard storage, and return-to-service inspections.
Cat 330 500-Hour Maintenance Checklist: Hydraulics, Fluids, Filters, Undercarriage and Attachments
A Cat 330 500-hour maintenance checklist for 30-ton excavator fleets covering hydraulic oil, filters, cooling airflow, undercarriage wear, bucket linkage, attachments, samples and work-order notes.
Cat 330 Hydraulic Overheating Troubleshooting: Hot Oil, Slow Cycle Times, Pump Noise and Attachment Load
A Cat 330 hydraulic overheating workflow for high oil temperature, slow boom or stick, pump noise, cooler restriction, relief heat, attachment duty, travel load and stop-work triggers.
Cat 330 Seasonal Maintenance Guide: Winter Starts, Summer Cooling, Tracks, Attachments and Storage
A Cat 330 seasonal maintenance guide for winter diesel, DEF, batteries, hydraulic warm-up, packed tracks, summer cooling airflow, attachment season changes, storage and return-to-service checks.
Hydraulic Fluid Sampling Guide for Heavy Equipment Fleets
How to take useful hydraulic oil samples from excavators, loaders, dozers, and backhoes, including contamination control, sample timing, label data, and what abnormal reports usually mean.
Komatsu PC360LC-11 500-Hour Maintenance Checklist: CLSS Hydraulics, Fluids, Filters and Tracks
A Komatsu PC360LC-11 500-hour maintenance checklist for CLSS hydraulics, SAA6D114E-6 engine service, fuel water separation, cooling airflow, Komtrax notes, tracks, boom, arm, and work-order records.
Komatsu PC360LC-11 Hydraulic Power Loss Troubleshooting: CLSS Flow, Slow Boom, Heat and Pump Noise
A PC360LC-11 hydraulic diagnostic workflow for CLSS flow complaints, slow boom or arm response, hot oil, pump noise, mode selection, attachment setup, travel power, and stop-work triggers.
Komatsu PC360LC-11 Seasonal Maintenance Guide: Winter Diesel, DEF, Cooling Airflow and Storage
A Komatsu PC360LC-11 seasonal maintenance guide for winter diesel, DEF, batteries, CLSS hydraulic warm-up, summer cooling airflow, dusty jobs, storage, and return-to-service checks.
Bulldozer Blade Types and Selection Guide: S-Blade, SU-Blade, U-Blade, PAT and VPAT
Choose a bulldozer blade by material, finish grade, push distance, machine size, ground pressure, blade capacity, cutting edge wear, visibility, and production target.
Bulldozer Overheating and Powertrain Troubleshooting: Cooling, Steering, Slipping Tracks and Weak Push
Troubleshoot crawler dozer overheating, weak push, steering pull, transmission heat, hydrostatic drive symptoms, packed tracks, fan problems, dirty cores and powertrain warnings.