Ditch Witch JT922 - Manual (Page 138)

JT922 Operator’s Manual
Service - 137
50 Hour
CMW
Change Fluid Pump Oil (Initial Service)
Change fluid pump oil after first 50 hours and every
750 hours thereafter. Drain at plug (2) and fill with
SAE 30 at plug (1). Maintain fluid level at fill plug.
Check Oil Cooler
Check oil cooler for dirt, grass, and other foreign
matter every 50 hours. Check more often if
operating in dusty or grassy conditions. Clean as
needed.
To clean
• Clean fins with compressed air or spray wash.
• Spray through oil cooler toward hydraulic tank.
• If grease and oil are present on oil cooler, spray
with solvent and allow to soak overnight.
Change Hydraulic Filter (Initial Service)
Change hydraulic filter after first 50 hours. Replace
filter every 500 hours thereafter. Change filter more
often if indicated by filter indicator.
IMPORTANT: Be careful not to damage
fins with high pressure air or water.
IMPORTANT: If hydraulic system must be
opened for repair, install new filter (p/n 153-
791) for first 50 hours of operation. If this filter
becomes plugged in fewer than 20 hours,
replace with new filter. After 50 hours of
normal operation, replace with new filter (p/n
153-792).