Months 1 3 6 12 Hours 170 500 1000 2000 Cylinder I I M I 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Oil purrip Oil leak and abnormal sound I 0 0 0 0 Hydraulic oil tank Oil level and contamination Tank and oil strainer Oil leak I C I 0 0 0 0 0 0 0 0 0 0 Control lever Loose l in kage Operation I I 0 0 0 0 0 0 0 0 Oil control * ~Iv ae Oil leak Relief pressure measurement Relief valve and tilt lock valve functions I M I 0 0 0 0 0 0 0 0 0 Hydrau li c piping Oil leak Deformation and damage Loose joint I I T 0 0 0 0 0 0 0 0 0 0 0 0 ELECTRICAL SYSTEM Ignition timing Cracks on distributor cap Spark plug burning and gap Distributor side terminal burning Distributor cap center piece wear and darnage Plug cord internal discontinuity Ignition timing 1 I I I I M 0 0 0 0 0 0 0 0 0 C 0 0 0 0 0 0 0 0 0 Starting rnotor Pinion gear meshing status I 0 0 0 0 Charger Charging function I 0 0 0 0 \ Battery Battery fluid level Battery fluid specific gravity I M 0 0 0 0 0 0 Electrical wiring Darnage of wiring harness Fuses I I 0 0 0 0 0 0 0 0