JT520 Operator’s Manual Service - 127
50 Hour
CMW
Change Drilling Fluid Pump Oil (Initial
Service)
Change fluid pump oil after first 50 hours and every
750 hours thereafter. Drain at plug (2) and add EO
at plug (1). Maintain fluid level at fill plug.
Check Radiator
Check radiator for dirt, grass, and other foreign
matter every 50 hours. Check more often if
operating in dusty or grassy conditions. Clean fins
with compressed air or spray wash.
Change Hydraulic Filter (Initial Service)
Change hydraulic filter (shown) after first 50 hours.
IMPORTANT: Be careful not to damage fins
with high pressure air or water.
To Next Page
