User guide
Service - 74 MR90 Operator’s Manual
Service Precautions
CMW
®
Service Precautions
Welding Precaution
Washing Precaution
Incorrect procedures could result in death, injury, or
property damage. Learn to use equipment correctly.
To help avoid injury:
• Unless otherwise instructed, all service should be performed with engine off.
• Refer to engine manufacturer’s manual for engine maintenance instructions.
NOTICE: Welding can damage electronics.
• Welding currents can damage electronic components. Connect welder ground close to welding
point and make sure no electronic components are in the ground path. .
• Disconnect battery at battery disconnect switch before welding to prevent damage to battery.
• Do not turn off battery disconnect switch with engine running, or alternator and other electronic
devices may be damaged.
NOTICE: Water can damage electronics. When cleaning equipment, do not spray electrical components
with water.