top of page
All Posts


Electrical Systems, Batteries & Cold-Start Strategy in Extreme Winter
By: Sammuel MacMullin – Proven Mining Solutions Inc. When temperatures drop to –30 °C (or lower), electrical problems quickly become one of the most common reasons machines refuse to start or randomly shut down. Modern heavy equipment does not simply need cranking—electrical reliability determines whether systems boot, modules communicate, and engines are even allowed to start. Cold weather does not “weaken electricity,” but it drastically changes electrical requirements: b
Sammuel MacMullin
9 hours ago4 min read


Air Systems & Moisture Management in Winter: Why Air Freezes, Valves Stick, and Control Is Lost at –30°C
By: Sammuel MacMullin | Proven Mining Solutions Estimated Read Time: ~13–15 minutes ❄️ Winter’s Most Dangerous Fluid Isn’t Oil — It’s Water in the Air Hydraulic systems get most of the winter attention. But in deep cold, air systems quietly become the highest-risk system on the machine. At –30°C: Hydraulic oil thickens Rubber stiffens Mechanical components contract But air does something far worse — it freezes solid. And when air freezes: Brakes do not release Parking brakes
Sammuel MacMullin
Dec 14 min read


Seals, Hoses & Rubber in Cold Weather: Why Machines Leak, Fail & Break in Winter
By: Sammuel MacMullin | Proven Mining Solutions Inc. Estimated Read Time: ~12–14 minutes ❄️ Introduction: Winter Is the Ultimate Stress Test for Rubber Cold weather changes everything about how rubber behaves. At –30°C, hoses stiffen, seals shrink, and rubber behaves more like plastic than rubber. That’s why winter brings leaks, blown hoses, and premature wear. This week we break down exactly why rubber behaves this way — and what you can do to prevent failures. 🧪 1. The S
Sammuel MacMullin
Nov 243 min read


Cold-Weather Hydraulic Warm-Up & Flow Management
By: Sammuel MacMullin | Proven Mining Solutions Inc. 🧊 Cold Oil Doesn’t Flow — It Fights Back Engines get all the attention in winter, but the hydraulics are what quietly take the beating. Cold hydraulic oil thickens, flow slows, pressures spike, and pumps cavitate. A pump doesn’t fail in one moment — it fails one cold morning at a time. That’s why winter hydraulic warm-up isn’t optional; it’s essential. 🛢️ Why Cold Oil Is Hard on Hydraulics As temperature drops: Viscosity
Sammuel MacMullin
Nov 173 min read


Tire Temperature, Wear Patterns & Maximizing Tire Life
By Sammuel MacMullin | Proven Mining Solutions Inc. 🛞 Tires — One of the Highest Operating Costs in the Fleet Undercarriage and tires are two of the biggest expenses in any operation. A failed tire is never just a tire — it’s lost production, idle equipment, a rushed recovery, and sometimes a tow bill you wish you could forget. Smart tire management isn’t complex — it’s about attention and discipline. 🌡️ Tire Temperature Tells a Story Temperature is a fast, accurate i
Sammuel MacMullin
Nov 103 min read


Winter Prep: Block Heaters, Diesel Heaters & Fuel System Readiness
By Sammuel MacMullin | Proven Mining Solutions Inc. ❄️ When the Cold Shows Up, Be Ready for It Winter doesn’t gradually introduce itself — one day it’s cool, the next morning everything is frozen solid. Machines are stiff, batteries drag, hydraulics are slow, and oil moves like honey. A well-prepped fleet runs through winter. A poorly prepped fleet spends half the morning trying to start. Winter prep is about: Protecting people Protecting equipment Protecting uptime 🧊 Why C
Sammuel MacMullin
Nov 32 min read


Brake System Checks for Heavy Equipment
Sammuel MacMullin | Proven Mining Solutions Inc. Brakes don’t usually get much attention — until they fail. Whether you’re running haul...
Sammuel MacMullin
Oct 274 min read


Grease Points – The Spots Everyone Forgets
By Sammuel MacMullin | Proven Mining Solutions Inc. 🛢️ Grease Points – The Spots Everyone Forgets Grease is cheap. Failures from lack of...
Sammuel MacMullin
Oct 202 min read
Fuel System Maintenance for Cold Weather
By Sammuel MacMullin | Proven Mining Solutions Inc. ❄️ Fuel System Maintenance for Cold Weather Cold weather doesn’t just make operators...
Sammuel MacMullin
Oct 132 min read


Electrical Gremlins – Diagnosing Intermittent Power Issues
By Sammuel MacMullin | Proven Mining Solutions Inc. ⚡ Electrical Gremlins – Diagnosing Intermittent Power Issues Few things test a...
Sammuel MacMullin
Oct 62 min read


Coolant Systems – More Than Just a Jug of Red Stuff
By Sammuel MacMullin | Proven Mining Solutions Inc. 1) Main Blog Post ❄️ Coolant Systems – More Than Just a Jug of Red Stuff Ask most...
Sammuel MacMullin
Sep 292 min read


Daily Walk-around Inspections That Actually Matter
By Sammuel MacMullin | Proven Mining Solutions Inc. 🚶 Daily Walk-around Inspections That Actually Matter Before a machine moves an inch,...
Sammuel MacMullin
Sep 222 min read


How to Spot Early Signs of Undercarriage Wear
By Sammuel MacMullin | Proven Mining Solutions Inc. Tracked equipment is the workhorse of mining, construction, and pipeline projects....
Sammuel MacMullin
Sep 153 min read


Winterizing Heavy Equipment
By Sammuel MacMullin | Proven Mining Solutions Inc. When the temperatures drop and frost hits the window, your gear needs more than a...
Sammuel MacMullin
Sep 82 min read


Preventative Hydraulic System Maintenance
By Sammuel MacMullin | Proven Mining Solutions Inc. Let’s talk hydraulics—the lifeblood of your equipment. When things are running...
Sammuel MacMullin
Sep 32 min read


A Day in the Life of a Proven Mining Mechanic: Grande Prairie Edition
Rise, Shine, and Wrench Time 6:45 a.m. – The sun’s barely up, but the shop lights are already humming. First order of business? Coffee....
Sammuel MacMullin
Jul 312 min read


The Importance of Air-Conditioning Maintenance for Off-Road Equipment
Off-road equipment, from heavy-duty trucks to construction machinery, operates in some of the toughest environments. Whether it's a...
Sammuel MacMullin
Jul 313 min read
bottom of page