Sarah Jenkins, CEMP
Fleet Economics & Machinery Analyst
Certified Equipment Manager Specialist analyzing heavy construction equipment life cycles, operating cost economics, and fuel burn metrics.
Editorial Role
What Sarah Jenkins, CEMP Covers
Sarah Jenkins, CEMP 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 Sarah Jenkins, CEMP.
Heavy Equipment Undercarriage Cost Per Hour Guide
How to estimate undercarriage cost per hour for dozers, excavators, and track loaders using track life, replacement cost, application severity, soil conditions, cleaning, and track tension habits.
Cat 308 CR Operating Cost Per Hour: Fuel Burn, Rubber Tracks, Attachments, Transport and Ownership
Cat 308 CR cost per hour guide using 2.7 gal/hr planning fuel burn, rubber tracks, buckets, attachments, trailer transport, maintenance, utilization and ownership.
Cat 308 CR vs Cat 320: Mini Excavator vs 20-Ton Excavator Specs, Transport, Fuel Burn and Job Fit
Compare Cat 308 CR vs Cat 320 by operating weight, horsepower, dig depth, hydraulic flow, fuel burn, transport, attachment fit and utility trenching productivity.
Heavy Equipment Engine Overheating Troubleshooting Checklist
A field checklist for diagnosing diesel engine overheating in excavators, dozers, loaders, and backhoes, covering coolant loss, radiator restriction, hoses, belts, fan issues, thermostat behavior, and workload.
Summer Heavy Equipment Cooling System Checklist
A summer heat checklist for excavators, dozers, wheel loaders, and backhoes covering coolant level, radiator restriction, debris screens, belts, hoses, fan operation, thermostat behavior, hydraulic temperature, and oil sampling.
JCB 3CX Operating Cost Per Hour: Fuel Burn, Tires, Brakes, Attachments and Ownership
JCB 3CX cost per hour guide using 2.4 gal/hr planning fuel burn, tires, brakes, loader and backhoe wear, attachments, transport savings, utilization and ownership.
JCB 3CX vs John Deere 310 P-Tier: Backhoe Loader Specs, Roading, Hydraulics, Lift and Ownership
Compare JCB 3CX vs John Deere 310 P-Tier by horsepower, operating weight, dig depth, hydraulic flow, loader lift, roading speed, dealer support and ownership cost.
Excavator Size Classes by Operating Weight: Mini, Midi, 20-Ton and Large Excavators
A practical excavator size class guide for comparing mini, midi, 20-ton, 30-ton and large excavators by operating weight, transport limits, dig depth, bucket size, fuel burn and jobsite fit.
Excavator Fuel Burn by Size Class: Mini, 20-Ton, 30-Ton and Production Machines
Estimate excavator fuel burn by size class and job type, including idle time, bucket fill, truck loading, trenching, hydraulic attachments, diesel price and hourly cost assumptions.