9. INSUFFICIENT COMPRESSION Condition: Does not cool Symptom seen in refrigeration system | Probable cause | Diagnosis | Remedy Pressure too high at low pressure side | Internal leak in compressor | Compression defective ↓ | Replace compressor Pressure too low at high pressure side | | Valves leaking or broken, sliding parts (piston, cylinder, gasket, connecting rod, etc.,) broken | SPECIAL TOOLS AND TEST EQUIPMENT Tool | SST No. | Use Manifold gauge set | 07110-78010 | To evacuate and charge system Ohmmeter | | To check magnetic clutch Magnetic clutch tool set | 07110-77011 | Includes the following 8 tools Pressure plate remover | 07112-71010 | To remove pressure plate Shaft plate remover | 07112-15010 | To remove shaft plate Shaft seal remover | 07114-15010 | To remove shaft seal Shaft plate installing tool | 07112-25010 | To install shaft plate Hexagon wrench set | 07110-61050 | To remove service valves and front housing Key press tool | 07114-45010 | To install key Snap ring pliers | 07114-84020 | To remove pressure plate