Weichai America Corp.
Revision: August 2019 18
WP04 Gas Engine Maintenance Procedures
1. Check Engine Oil
A. Ensure engine is level.
B. Pull dipstick after the engine stop running at least 5 minutes.
C. Ensure oil level is between high and low marks.
Illustration 3
D. If the oil level is below the low mark, add additional oil as necessary.
E. Install dipstick.
2. Check Coolant Level
Caution: Never remove radiator or top tank cap when coolant is hot! Burns and physical
harm may occur.
Illustration 4
A. When coolant is room temperature or below, remove pressurized cap and inspect
top tank or radiator for fluid level.
B. If engine has a sight gauge or plastic top tank, a visual level check is adequate.
C. If coolant level is low, determine reason for low fluid and top off with specified
coolant.
D. Test pressurized cap (replace if necessary or reinstall).
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