SERVICE SCHEDULE Maintenance work must be done at regular intervals. Failure to do so will result in excessive wear and early failures. The service schedule is a guide for correct maintenance of the Hydraulic Excavator. Instructions are necessary before operating or servicing machine. Read Operation & Maintenance Manuals, Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Failure to follow instructions can cause injury or death.
W–2003–0797
ITEM Engine Air Cleaner Engine Oil Engine Coolant System Indicator Lights Operator Cab Seat Belt Safety Signs (Decals) Tracks All Machinery Pivot Points Hyd. Fluid, Hoses & Tubelines Battery Fuel Tank/Fuel Filter Swing Circle Swing Pinion Spark Arrestor Muffler Alternator/Fan Belt Engine Oil & Filter Travel Motors Fuel Filter Cooling System Alternator & Starter Hydraulic Filter Case Drain Filter Cooling System Hydraulic Tank Travel Motors Cab Heater Air Filter
SERVICE REQUIRED
8–10
Replace the filter element only when the red ring shows in the indicator window. Check for leaks and damaged components. Check the oil level and add oil as needed. Check coolant level in recovery tank. Check for correct operation. Check the fastening bolts, nuts, and condition of cab/canopy. Check the condition and that fasteners are tight. Check for damaged signs (decals) replace as needed. Check and adjust tension. Lubricate 29 grease fittings. For excavators equipped with optional lifting clamp there are 33 grease fittings. Check fluid level and add as needed. Check for damage and leaks. Repair and replace as needed. Check cables, connections and electrolyte level. Add distilled water as needed. Drain water and sediment from fuel tank/fuel filter. Lubricate two grease fittings. Lubricate one grease fitting. Clean spark chamber (if equipped). Check and adjust tension. Replace oil and filter element. Check fluid level and add oil as needed. Replace filter element. Clean the radiator fins. Check the condition of connections. Replace filter element. Replace filter element Drain, flush and add new coolant to the cooling system. Change the fluid, clean fill neck strainer. Change the oil. Clean the filter.
50
100
250
500 1000
* *
**
**
*Perform after the first 50 hours of machine operation. Replace the engine oil and filter. Check the condition of the alternator/fan belt. **Perform after the first 100 hours of machine operation. Change oil in travel motors. Replace hydraulic filter. Or Every 12 Months.
Revised Nov. 98
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337 (S/N 515411001 & Above) Excavator Service Manual