Perkins — Atomiser - to remove and to fit
Repair & overhaul
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- Do not let the fuel spray on to your skin.
Procedure
- Remove the fuel leak-off pipe.
- Release the union nuts of the high-pressure pipes from the atomisers and the pump; hold the pump outlet with a spanner.
- Release the setscrews of the atomiser flange and remove the flange, atomiser and seat washer.
- Remove the dust seal and spacer; fit the spacer and a new dust seal to the new atomiser.
- Fit the new atomiser with spacer, new dust seal and new seat washer and fit the flange.
- Tighten the flange setscrews gradually and evenly to 12 Nm (9 lbf ft) 1,2 kgf m.
- Fit the high-pressure pipes and tighten union nuts to 18 Nm (13 lbf ft) 1,9 kgf m.
- Renew the seal washers and fit the leak-off pipe.
- Operate the engine and check for fuel leakage.
Specs & values
- Atomiser flange 12 Nm (9 lbf ft) 1,2 kgf m
- High-pressure pipe union nuts 18 Nm (13 lbf ft) 1,9 kgf m
Source: Perkins service 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.