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2, Oil and Gasoline / LPG/ NG
Add Engine Oil
We recommend using FIRMAN SAE 10W-30 API SL oil for best performance. Other high-quality
detergent oils (API SL or higher) are acceptable. Do not use special additives. Ambient temperature
determines the proper oil viscosity for the engine. Use the chart to select the proper oil for the
outdoor temperature range expected.
NOTICE Do not attempt to crank or start the engine before it has been properly filled with the
recommended type and amount of oil. Damage due to operation with no oil will void your warranty.
1. Place generator on a flat, level surface.
2. Clean area around oil fill and remove yellow oil fill cap/dipstick.
3.Wipe dipstick clean.
English
Degrees Celsiusº(Outside)
Full Synthetic 5W-30
5W-30
10W-30
Degrees Fahrenheitº(Outside)
H
L
DRAIN PLUG
9
10W-40
(H)
(L)
Customer Service: 1-844-FIRMAN1
OPERATION
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Need help?
Do you have a question about the T07571 and is the answer not in the manual?
Questions and answers
The generator runs but no power is coming out of the outlets
If the Firman T07571 generator is running but not producing power from the 120V outlet, possible causes include:
1. Tripped Circuit Breaker – The breaker may have tripped, cutting power to the outlets. Check and reset it if necessary.
2. Faulty or Loose Connections – Inspect the wiring and outlet connections for any loose or damaged components.
3. Generator Not Properly Excited – If the generator has lost residual magnetism, it may need to be re-excited using an external power source.
4. Voltage Regulator Issue – A faulty automatic voltage regulator (AVR) can prevent power output.
5. High Altitude Operation – If operating at high altitudes without the correct carburetor jet, performance may be affected, though this primarily impacts engine operation rather than power output.
6. Fuel Type and Mode Selection – If switching between gasoline, propane, or natural gas, ensure the generator is properly set for the selected fuel type.
Checking these factors can help diagnose and resolve the issue.
This answer is automatically generated
Tri fuel switch will not turn off of propane setting.
What will make my generator crank up runs for a couple seconds then cut itself off but can crank it right back up if I choke it
A Firman T07571 generator that runs for a few seconds and then shuts off but restarts when choked may have a clogged or dirty carburetor, a restricted exhaust screen, or a dirty air filter. It could also have old or poor-quality fuel. Choking increases fuel flow, which can temporarily compensate for these issues. Cleaning the carburetor, air filter, and exhaust screen, and replacing old fuel, may resolve the problem.
This answer is automatically generated
Switch will not turn to gas setting
The switch on the Firman T07571 may not turn to the gas setting if there is an issue with the VF and Dual Fuel module or other internal components. Even after replacing these parts, some users still experienced problems, indicating a deeper issue possibly requiring service at an authorized repair shop.
This answer is automatically generated