Dewalt DXGNR4000 Instruction Manual - Page 20

Maintenance Inspect Spark Arrester Screen WARNING Hot Surfaces. When operating machine, do not touch hot surfaces. Keep machine away from combustibles during use. Hot surfaces could result in severe burns or fire. 1. Remove screws (A) and cover plate (B). 2. Inspect screen (C) and replace if torn, perforated or other- wise damaged. If screen is not damaged, clean with commercial solvent. 3. Replace spark arrestor screen (C) and cover plate (B). Secure with screws (A). 000809 A Service Spark Plug To service spark plug: 1. Clean area around spark plug. 2. Remove and inspect spark plug. 3. Inspect electrode gap with wire feeler gauge and reset spark plug gap to 0.020 - 0.028 in (0.5 - 0.7 mm). C A B 009126 000211 NOTICE: Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use ONLY recommended replacement plug. See Specifica- tions. 4. Install spark plug finger tight, and tighten an additional 3/8 to 1/2 turn using spark plug wrench. Valve Clearance IMPORTANT: If uncomfortable about doing this procedure, or the proper tools are not available, take generator to the nearest service center to have valve clearance adjusted. Check valve clearance after the first fifty-hours of operation. Adjust as necessary. • Intake - 0.10-0.15mm (cold), (0.004-0.006 inches) • Exhaust - 0.15-0.20mm (cold), (0.006-0.008 inches) Storage General It is recommended to start and run the generator for 30 minutes, every 30 days. If this is not possible, refer to the following list to prepare unit for storage. • DO NOT place a storage cover on a hot generator. Allow unit to cool to room temperature before storage. • DO NOT store fuel from one season to another unless properly treated. • Replace fuel container if rust is present. Rust in fuel will cause fuel system problems. • Cover unit with a suitable protective, moisture resistant cover. • Store unit in a clean and dry area. • Always store generator and fuel away from heat and igni- tion sources. Prepare Fuel System/Engine for Storage Fuel stored over 30 days can go bad and damage fuel system components. Keep fuel fresh, use fuel stabilizer. If fuel stabilizer is added to fuel system, prepare and run engine for long term storage. Run engine for 10-15 minutes to circulate stabilizer throughout fuel system. Adequately prepared fuel can be stored up to 24 months. NOTICE: If fuel has not been treated with fuel sta- bilizer, it must be drained into an approved container. Run engine until it stops from lack of fuel. Use of fuel stabilizer in fuel storage container is recommended to keep fuel fresh. 1. Change engine oil. 2. Remove spark plug. 18 Owner's Manual for Portable Generator