For best operation and longer lifetime, lubricate the gear case with a special grease (4–5g each time) after every 50 hours’ operation.
The special grease should meet the following requirements:
Belong to DIN51818: NLGI-1 cone penetration degree.
Ester base grease.
Excellent low-temperature startup, EP, mechanical shearing, abrasion resistance, and oxidative stability properties.
Operation temperature must contain -40~180°C. Remove the battery plug and the sealing screw. Lubricating the gear case through the oil-hole.
⚠ WARNING: Do not lubricate while the machine is still connected with the battery or running.