Tests IMPORTANT: A variation exceeding 200 kPa (2 bar) (29 psi) is not acceptable and must be corrected. Problems possibly causing low compression: Worn or broken compression rings Worn cylinder linings Damaged valves Blown head gasket JC89288,0000193 –19–18APR06–2/2 TM2361 (24JUN08) 9010-25-8 450DLC Excavator Operation and Tests 062608 PN=304 Air Filter Restriction Indicator Switch Test SPECIFICATIONS Air Filter Restriction Indicator 5.0 kPa (50 mbar) (20 in. water) Must Come On At Vacuum ESSENTIAL TOOLS JT05652 (1/8 F NPT x 1/8 F NPT x 1/8 M NPT) Tee JT03246 (1/4 F NPT x 1/4 F NPT) (Parker No. 0202-4-4) Coupler SERVICE EQUIPMENT AND TOOLS 1/8 in. Barbed Fitting 1/4 in.
Barb Fitting 0—15 kPa (0—150 mbar) (0—60 in. water) Vacuum Gauge Continued on next page JC89288,0000195 –19–26JAN06–1/2 9010 25 8 SPECIFICATIONS Air Filter Restriction Indicator Must Come On At Vacuum 5.0 kPa (50 mbar) (20 in. water)