4. MAINTENANCE 4. 4 50 HOUR SERVICE CHECK The following service check is to be performed by your dealer after the first 50 hours of operation. To avoid personal injury, lower the lift arms, shut off the engine, raise the seat bar and cycle the lift arms and bucket controls to ensure they are locked. Then, unlatch the seat belt and exit the loader. Do not enter or exit with the engine running unless as specified in this manual or under specific service and backhoe operating procedures. 1 Engine 1.1 Oil and Filter: WARNING Change the engine oil and filter. Use only original replacement parts. Change the oil every 150 hours thereafter. Change the filter every 300 hours thereafter. 1.2 Radiator:
Check the coolant level. A dirt buildup on the radiator cooling fins can cause engine overheating. If necessary, clean the radiator with compressed air. Check the sealing ring on the plenum and radiator/cooler for proper sealing. Repair or replace if necessary. Keep the rear door and radiator closed and latched except for servicing. IMPORTANT 1.3 V-Belt Tension and Condition: Check v-belt for cuts or wear, if necessary replace. Check tension and adjust as shown in Section 4.8-4. 1.4 Fuel System for Leaks: Make a visual inspection of fuel system for leaks and potential hazards such as fuel line(s) touching exhaust manifold, flywheel, etc. Replace fuel filter every 300 hours.
1.5 Air Intake and Cleaner System: Visually inspect the air cleaner system and be sure all hose clamps are secure and no hoses are damaged. 1.6 Exhaust System: Visually inspect the exhaust system and ensure all clamps are secure and the manifold bolts/nuts are tight. 1.7 Engine Speed: Check engine speed and if adjustment is necessary, contact a Hyundai Equipment dealer. 1.8 Fan Drive: Inspect fan, bolts, v-belt and guard to ensure there is no buildup of dirt, trash, or wear. Use compressed air to clean the area. 43 Coolant Fill Coolant Level C3790 Fig. 4.3G C3790 Fig. 4.3G