Knowledge Base
Field Technician Supplies & Tools
Knowledge from field experience. Essential supplies, tools, and equipment recommendations for gas station technicians. Learn what you need, why you need it, and when to use it.
Based on real-world field work. Good days and bad days. What works, what doesn't, and what you can't live without.
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Essential Supplies Database
Digital Multimeter
Essential for testing electrical circuits, voltage, and continuity
Critical for diagnosing dispenser issues, POS problems, and electrical faults
Every service call involving electrical components
- Recommended: Fluke 179 or equivalent
- Features: True RMS, CAT III/IV rated
$150-$400
Field Notes
Fluke 179 is the field standard. Don't cheap out on meters—they save time and prevent mistakes. Rated by field technicians who use these tools. Not by managers who've never seen a gas station.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Clamp meter (for current measurement)
- • Basic multimeter (budget option)
Clamp Meter
Measures current without breaking the circuit
Essential for checking motor current, pump loads, and electrical consumption
STP service, motor diagnostics, power consumption checks
- Type: AC/DC clamp meter
- Range: 0-600A typical
$100-$300
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Multimeter with clamp attachment
Megohmmeter / Insulation Tester
Tests insulation resistance in motors and electrical equipment
Critical for diagnosing motor failures, especially in STPs and pumps
Motor diagnostics, preventive maintenance, troubleshooting electrical faults
- Range: 0-1000 MΩ typical
$200-$600
Field Notes
Not used daily, but invaluable when you need it. Motor failures are expensive—catch them early.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Multimeter with high resistance range (limited)
Pressure Gauge
Measures fuel line pressure and system pressure
Essential for diagnosing flow issues, pump problems, and line pressure
Dispenser flow issues, STP diagnostics, line pressure checks
- Range: 0-100 PSI typical
- Connection: 1/4" NPT or quick-connect
$30-$100
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Digital pressure gauge
- • Manometer (for vapor recovery)
Manometer
Measures vapor recovery pressure and vacuum
Required for vapor recovery system diagnostics and compliance testing
Vapor recovery system service, compliance testing, VR diagnostics
- Type: Digital or analog
- Range: ±20" WC typical
$100-$300
Field Notes
Specialized tool, but essential for VR work. One dispatcher. P1. P2. P3. Email. Phone. Makes sense.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Digital pressure gauge with low range
Pipe Wrench Set
Heavy-duty wrenches for fuel line connections and fittings
Required for working with fuel lines, breakaways, and pipe connections
Dispenser repairs, STP service, line replacements
- Sizes: 8", 10", 12", 14", 18"
- Material: Aluminum or steel
$50-$150 per set
Field Notes
Ridgid is the field standard. Don't use pipe wrenches on hex fittings—use proper wrenches.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Adjustable wrenches (limited)
- • Strap wrenches (for delicate fittings)
Socket Set (Metric & SAE)
Comprehensive socket set covering common sizes for dispensers and equipment
Most equipment uses standard bolt sizes—having both metric and SAE is essential
Virtually every repair job
- Drive sizes: 1/4", 3/8", 1/2"
- Range: 4mm-24mm, 1/4"-1"
- Type: 6-point and 12-point
$100-$400
Field Notes
Get a good set—cheap sockets round off bolts. Snap-on, Mac, Matco are professional grade. Craftsman or Husky are good budget options.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Individual socket sets
- • Impact sockets (for power tools)
Screwdriver Set
Various screwdriver types including Torx and security bits
Dispensers and equipment use various screw types—need the right bit
Every service call
- Types: Flat, Phillips, Torx, Security Torx, Hex
- Sizes: Various
$30-$100
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Multi-bit screwdriver
- • Power driver with bits
Torque Wrench
Calibrated wrench for proper bolt tension on dispenser bolts
Critical for dispenser bolts—overtightening causes damage, undertightening causes leaks
Dispenser installation, critical bolt tightening
- Type: Click-type or beam
- Range: 10-150 ft-lbs typical
$50-$200
Field Notes
Essential for dispenser work. Don't guess on bolt torque—it matters.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Torque adapter for ratchet
Pliers Set
Various pliers for gripping, cutting, and bending
Essential for wire work, hose clamps, and general gripping tasks
Electrical work, hose connections, general repairs
- Types: Needle-nose, lineman's, diagonal cutters, slip-joint
$40-$120
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Multi-tool pliers
Breaker Bar for Manhole Covers
Long-handled tool for opening heavy manhole covers
Manhole covers are heavy and often stuck—need leverage to open safely
Tank access, manhole cover removal
- Length: 24"-36"
- Material: Steel
$30-$80
Field Notes
This tool exists because someone in the field needed it. The knowledge lives in the technician's head.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Pipe extension on wrench
- • Lifting equipment
Bung Wrench for Fill Caps
Specialized wrench for opening fill cap bungs
Fill caps require specific tools—standard wrenches don't fit
Tank filling, fill cap service
- Type: Square or hex drive
- Size: Various
$20-$50
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Adjustable wrench (limited)
Tank Stick (Gauging Stick)
Calibrated stick for manual tank gauging
Backup method for tank level measurement when electronic gauges fail
Tank level verification, gauge calibration, emergency measurements
- Material: Fiberglass or aluminum
- Length: Tank depth dependent
$50-$150
Field Notes
Old school but reliable. When the TLS fails, the stick doesn't lie.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Electronic tank gauge
- • Sight gauge
OPW T-120 Shear Valve Adjustment Tool
Specialized tool for adjusting OPW 10A shear valves
Shear valves require specific adjustment—wrong tool damages the valve
Shear valve service, adjustment, troubleshooting
- Compatibility: OPW 10A shear valves
$30-$60
Field Notes
OPW-specific tool. Don't try to adjust without it—you'll regret it.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Improvised tool (not recommended)
Nozzle Ring Tool
Tool for removing and installing nozzle rings
Nozzle rings are difficult to remove without proper tool
Nozzle service, ring replacement
- Compatibility: Various nozzle types
$20-$50
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Pliers (damages ring)
- • Screwdriver (not recommended)
Coaxial Fitting Wrench
Wrench for vapor recovery hose coaxial fittings
VR hose fittings require specific wrenches—standard tools don't fit
Vapor recovery hose service, fitting replacement
- Type: Coaxial fitting specific
$15-$40
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Adjustable wrench (limited)
Safety Glasses
ANSI-rated eye protection for field work
Protection from fuel splashes, debris, and chemical exposure
Always—safety first on every job
- Rating: ANSI Z87.1
- Type: Wraparound or side-shield
$10-$50
Field Notes
Always wear them. Fuel in the eye is not fun. One dispatcher. P1. P2. P3. Email. Phone. Makes sense.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Safety goggles (for chemical splash)
- • Face shield (for heavy work)
Nitrile Gloves (Fuel-Resistant)
Chemical-resistant gloves for handling fuel and cleaning chemicals
Protection from fuel, solvents, and cleaning agents
Any work involving fuel contact or chemical handling
- Material: Nitrile
- Thickness: 5-8 mil
- Rating: Fuel-resistant
Box of 100+
$15-$40 per box
Field Notes
Get fuel-resistant nitrile. Regular nitrile degrades with fuel contact. Keep plenty in the truck.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Latex gloves (not fuel-resistant)
- • Butyl gloves (heavy-duty)
Flame-Resistant (FR) Clothing
Flame-resistant work clothing for fuel handling
Protection from flash fires and fuel ignition
Fuel handling, tank work, high-risk operations
- Rating: NFPA 70E, CAT 2
- Material: FR cotton or synthetic
$50-$200 per item
Field Notes
Required for some operations. Check company policy and job requirements.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Regular work clothing (not recommended for fuel work)
Intrinsically Safe Flashlight
Explosion-proof flashlight for use in hazardous areas
Required for tank entry and confined space work—prevents ignition
Tank entry, confined space work, hazardous area inspection
- Rating: Class I, Division 1
- Type: LED, battery-powered
$50-$150
Field Notes
Essential for tank work. Don't use regular flashlights in tanks—it's a fire hazard.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Regular flashlight (not safe for tanks)
- • Headlamp (if rated)
Multi-Gas Detector
Detects combustible gases, oxygen, and toxic gases
Critical for confined space entry and tank work—detects dangerous conditions
Tank entry, confined space work, leak detection
- Gases: LEL, O2, CO, H2S
- Type: 4-gas monitor
$300-$800
Field Notes
Don't enter tanks without one. This is life safety equipment. Calibrate regularly.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Single-gas detector (limited)
- • Combustible gas detector only
Fire Extinguisher (Fuel Fire Rated)
Class B fire extinguisher for fuel fires
Required for fuel handling operations—immediate fire response
Fuel handling, hot work, emergency response
- Type: Class B (flammable liquids)
- Size: 5-10 lbs minimum
$30-$100
Field Notes
Keep it accessible. Check pressure monthly. Know how to use it before you need it.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Class ABC (less effective for fuel)
- • Fire suppression system
Electronic Tank Gauge Tester
Device for testing and calibrating electronic tank gauges
Essential for troubleshooting TLS and other tank monitoring systems
Tank gauge diagnostics, calibration, troubleshooting
- Compatibility: TLS, Franklin, OPW systems
$200-$600
Field Notes
Specialized tool. May be manufacturer-specific. Check compatibility before buying.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Manual testing methods
- • Manufacturer service tools
Leak Test Kit
Vacuum testers and equipment for line leak detection
Required for compliance testing and leak detection
Line leak testing, compliance testing, leak detection
- Type: Vacuum tester or pressure decay
- Range: System dependent
$200-$800
Field Notes
Required for compliance. Know your state requirements.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Manual testing methods
- • Third-party testing service
Spill Bucket Test Kit
Hydrostatic test equipment for spill buckets
Required for spill bucket compliance testing
Spill bucket testing, compliance verification
- Type: Hydrostatic test
- Capacity: Various
$100-$300
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Visual inspection (limited)
- • Third-party testing
Fuel Dispenser Filters
Spin-on filters for fuel dispensers (PetroClear, Cim-Tek)
Essential for fuel quality—removes water and contaminants
Filter changes, preventive maintenance, water contamination
- Series: PetroClear 405/505, Cim-Tek
- Micron: 10-30 micron typical
- Color: Red, green, blue (filtration level)
Keep 10-20 in stock
$15-$40 each
Field Notes
PetroClear 405/505 series most common. Color-coding helps identify filter types. Change regularly—water kills dispensers.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Generic filters (check compatibility)
- • Aftermarket filters
Fuel Hose
UL-listed fuel hoses for dispensers (8', 10' lengths, 3/4", 1" diameters)
Required for dispenser hose replacement—must be UL-listed
Hose replacement, new installation, hose failure
- Length: 8', 10' typical
- Diameter: 3/4", 1"
- Rating: UL-listed
- Type: Fuel-rated
Keep 2-4 hoses per dispenser type
$50-$150 per hose
Field Notes
Must be UL-listed. Don't use non-rated hoses—it's a code violation and safety hazard.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Vapor recovery hoses (if VR system)
- • DEF hoses (for DEF dispensers)
Vapor Recovery Hose
Coaxial hoses for vapor recovery systems
Required for VR dispensers—handles both fuel and vapor
VR hose replacement, VR system installation
- Type: Coaxial (fuel + vapor)
- Length: 8', 10' typical
- Rating: UL-listed
Keep 2-4 VR hoses
$80-$200 per hose
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Standard fuel hose (not for VR)
Nozzle Rebuild Kit
O-rings and parts for nozzle rebuilding (OPW 7HB, Husky, etc.)
Cost-effective alternative to new nozzles—rebuild instead of replace
Nozzle leaks, preventive maintenance, nozzle service
- Compatibility: OPW 7HB, Husky, various models
- Contents: O-rings, springs, seals
Keep 5-10 kits
$15-$40 per kit
Field Notes
Rebuild kits save money. Learn to rebuild nozzles—it's a valuable skill.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • New nozzle (more expensive)
- • Individual O-rings
Viton O-Ring Assortment
Fuel-resistant O-rings in various sizes
Essential for sealing—used in nozzles, swivels, filters, valves
Leak repairs, preventive maintenance, rebuilds
- Material: Viton (fuel-resistant)
- Sizes: Various (SAE and metric)
Keep comprehensive assortment
$30-$100 per assortment
Field Notes
Viton is fuel-resistant. Buna-N swells with fuel contact. Get the right material.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Individual O-rings
- • Buna-N (not fuel-resistant)
Fuel-Resistant Thread Sealant
Thread sealant for fuel system connections (RECTORSEAL T2, PTFE tape)
Prevents leaks in threaded connections—must be fuel-resistant
Pipe connections, fittings, threaded joints
- Type: RECTORSEAL T2 or yellow PTFE tape
- Rating: Fuel-resistant
Keep 2-3 tubes/rolls
$5-$20
Field Notes
Use yellow PTFE tape for fuel. White tape is not fuel-resistant. RECTORSEAL T2 is the field standard.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Regular PTFE tape (not recommended)
- • Pipe dope (check rating)
THHN Wire
Wire for dispenser wiring and electrical connections
Required for electrical repairs and new installations
Electrical repairs, new wiring, wire replacement
- Type: THHN (Thermoplastic High Heat-resistant Nylon)
- Gauge: 12 AWG, 14 AWG typical
- Rating: 600V
Keep various gauges and colors
$0.50-$2 per foot
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • UF wire (underground)
- • Shielded cable (for sensors)
Weatherproof Connectors
Wire nuts, crimp connectors, and weatherproof enclosures
Essential for outdoor electrical connections—must be weatherproof
Electrical connections, wire splices, outdoor wiring
- Type: Wire nuts, crimp connectors, junction boxes
- Rating: Weatherproof, explosion-proof if needed
Keep assortment
$10-$50 per assortment
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Regular connectors (not for outdoor)
- • Solder connections (with proper protection)
Spill Kit
Absorbent pads, neutralizers, and cleanup supplies
Required for fuel spill response—regulatory requirement
Fuel spills, leaks, cleanup operations
- Contents: Absorbent pads, neutralizers, disposal bags
- Capacity: Various sizes
Keep 1-2 kits in truck
$50-$150 per kit
Field Notes
Required by law. Know spill reporting requirements. Keep it accessible.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Individual supplies
- • Third-party cleanup service
Cordless Drill / Impact Driver
Power drill for fastening and drilling
Speeds up installation and repairs—essential for efficiency
Installation work, fastener removal, drilling
- Type: Cordless, 18V or 20V
- Features: Variable speed, torque control
$100-$300
Field Notes
Milwaukee, DeWalt, Makita are field favorites. Get brushless motors—they last longer.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Corded drill (less portable)
- • Manual tools (slower)
High-Lumen Flashlight
Bright, durable flashlight for inspecting tanks, dispensers, and equipment
Many work areas are poorly lit—tanks, dispenser internals, equipment rooms
Every service call
- Lumens: 500+
- Type: LED, rechargeable or battery
$20-$100
Field Notes
Get a good one. Cheap flashlights die when you need them most. Keep spare batteries.
Manufacturer Documentation
Most of the time, manufacturer documentation guides are the best resource for troubleshooting.
View Manufacturer Documentation →- • Headlamp
- • Work light
- +1 more
Job-Specific Tool Lists
Field Notes
✓ Good Day Example
Scenario: Dispenser repair call, customer reporting "no flow" issue.
Tools used: Multimeter, socket set, pipe wrench, flashlight.
Outcome: Diagnosed faulty solenoid valve in 15 minutes. Had the right tools, replaced the valve, tested, and done. Customer happy, technician home early.
✗ Bad Day Example
Scenario: STP service call, pump not starting.
Missing tool: STP puller (didn't have one, had to improvise).
Outcome: Spent 3 hours trying to pull the pump manually. Finally got it, but wasted time and risked injury. Lesson learned: always bring the right tools.
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