Air Pump
To test pump, disconnect air outlet hose and install air pump tester (09258-60010) into outlet. Check drive belt tension and adjust to specified value. Start engine and increase RPM to following specifications:
Air Pump Testing RPM
| Engine | RPM | ||
|---|---|---|---|
| K-C | 1650 | ||
| 3K-C | 2200 | ||
| 3R-C | 1250 | ||
| 2M, 4M & 2M-B | (1) 1250 | ||
| F | 1000 | ||
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Make sure there is no leak from outlet and tester connection. Observe indicator needle for movement, needle should be in green zone. If in red zone, check relief valve for leak. If leaking, relief valve is defective and must be replaced. If not, disassemble and check pump. If pump is excessively noisy, disassemble and repair.