JT520 Operator’s Manual Service - 139
As Needed
CMW
Check Drilling Fluid Pump Check Valve
Check fluid pump check valve (shown) o-ring for
wear and replace as needed.
Check Carriage Slide Bars
Check slide bars (shown) for wear and replace as
needed.
Replace Fuses
Change fuses (shown) as needed. Refer to decal
inside panels to identify fuses.
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