Perkins — Air Shutoff - Test
Testing & diagnosis · Air shutoff valve
From a Perkins operator's manual — check it applies to your exact model before use.
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Before you start
- Actuating the air shutoff valve may result in oil leakage past the shaft seal
- Repeated actuation during loaded operation can cause mechanical damage to the turbocharger
Procedure
- Place the engine at low idle speed with all normal accessories in use.
- Actuate the air shutoff manually; energize the solenoid with a momentary signal (electrical) or pull the emergency stop handle (hydraulic).
- Ensure that the air shutoff was actuated and that the engine comes to a complete stop.
Tools required
- Applicable power supply or jumper cables Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Perkins operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.