Arizona summers test forklifts in ways that most other climates do not. Temperatures exceeding 110 degrees, fine desert dust that infiltrates every system, and sustained heat stress across multi-shift operations create conditions that can turn minor maintenance oversights into real breakdowns.
Use this checklist before and during Arizona’s hottest months to make sure your equipment is ready. JTS Forklift Service provides mobile inspection and maintenance services throughout Arizona. For more on our inspection capabilities, see our page.
Cooling System (Propane and CNG Forklifts)
- Check coolant level in the reservoir and radiator
- Inspect coolant condition — old or contaminated coolant should be replaced regardless of level
- Clean radiator fins with compressed air to remove Arizona dust and debris
- Check radiator hoses for cracks, softness, or deterioration from heat exposure
- Inspect the radiator cap for a proper seal
- Test the thermostat if the engine is running hotter than normal
- Check the water pump for leaks and unusual noise during operation
Dust accumulates in radiator fins faster in Arizona than in most other environments. Make radiator cleaning a standard part of your summer maintenance routine.
Hydraulic System
- Check hydraulic fluid level and inspect condition — color, clarity, and odor
- Replace hydraulic fluid if it is dark, foamy, or shows signs of contamination
- Inspect the hydraulic filter and replace it if clogged or near the end of its service interval
- Check hydraulic hoses for cracking, bulging, abrasion wear, and seepage at fittings
- Inspect cylinder seals for leaking
- Test lift performance for hesitation, slow response, or mast drift when holding a load
- Listen for unusual sounds from the hydraulic pump under load
Heat thins hydraulic fluid and accelerates seal degradation. Inspect hydraulic fluid condition more frequently during summer, not just at standard service intervals. For more on protecting systems from Arizona heat, see our page.
Battery and Electrical System (Electric Forklifts)
- Check battery water level and top off with distilled water if needed
- Inspect battery terminals for corrosion and clean as needed
- Verify battery connections are tight and secure
- Note charging time versus normal baseline — extended charge times may indicate capacity loss
- Monitor battery temperature after a charge — excessive heat points to a failing cell or watering issue
- Inspect battery cables for wear, fraying, or damage
- Check charging equipment for proper function and secure connections
Arizona heat accelerates water loss in lead-acid batteries. Check water levels more frequently during summer than the standard schedule requires.
Engine and Fuel System (Propane and CNG Forklifts)
- Check engine oil level and condition
- Inspect the air filter for dust and debris clogging
- Check fuel hoses and connections for wear or deterioration
- Inspect propane tank or CNG system connections for leaks
- Verify the fuel regulator is functioning correctly
- Check spark plugs if the engine shows rough idling or reduced power
Arizona dust clogs air filters faster than in other climates. Inspect air filters more frequently during summer or after periods of high dust. For more on protecting equipment from dust damage, see our resource.
Tires
- Inspect all tires for wear past the wear indicator line
- Check cushion tires for chunking, cuts, or heat-related cracking
- Check pneumatic tires for proper inflation — Arizona heat increases tire pressure
- Inspect sidewalls for cracking or damage
- Look for embedded debris in tire treads or sidewalls
Mast, Forks, and Lifting Components
- Inspect fork tines for cracks at the heel and along the blade
- Check fork thickness against manufacturer’s minimum specifications
- Inspect mast rails and carriage for cracks, bends, or damage
- Check mast chain tension and inspect for wear, stretch, or damaged links
- Lubricate mast channels and chains if dry
- Verify the backrest extension is secure and undamaged
Brakes, Steering, and Controls
- Test brake pedal response and resistance
- Listen for grinding or unusual sounds during braking
- Inspect brake fluid level and condition
- Test steering response for unusual resistance or play
- Test the horn, all lights, and the backup alarm
- Verify seat belt function and condition
- Check dashboard for any warning lights or fault codes
- Confirm all operator controls respond normally
After Inspection: What to Do
Any item on this checklist that shows an issue should be documented and addressed before the forklift returns to service. Items requiring a qualified technician should be routed to your service provider promptly — especially during the summer, when deferred maintenance escalates quickly in the Arizona heat.
Call JTS Forklift Service’s Arizona team at (480) 404-5023 or visit jtsforklift.com to schedule a summer inspection visit.
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