Every 250 Hours Or 6 Months - Equalise Rocker Bridges And Setting Valve Clearances - Perkins 400 Series User Handbook Manual

MAINTENANCE SCHEDULE & CHECKLISTS
EVERY 250 HOURS OR 6 MONTHS
EQUALISE ROCKER BRIDGES AND
SETTING VALVE CLEARANCES
NOTE: The bridge pieces must be set before
attempting to set the valve clearances.
WARNING
OTHER MEANS OF STARTING THE
ENGINE.
Remove the 4 slot headed screws from each
rocker cover, lift off the covers and peel off
and throw away the old gaskets Fig. 49.
To set the valve clearances and bridge
pieces the appropriate valves must be
rocking, use the table on
NOTE: For cylinder designation see
Data on page 11.
In order that the engine may be rotated while
the batteries are disconnected an engine
rotating device can be fitted to a spare starter
motor hole in the flywheel housing Fig. 50.
This is fitted with a cover which is removed
by unscrewing the retaining screw. Then
using a socket and ratchet wrench press
against the spring loaded bolt head until the
pinion engages with the flywheel gear and
rotate the engine to the desired position by
turning in the direction of the arrow. When
the engine is fitted with three starters, one of
them may need to be removed to enable the
above device to be fitted.
55
DISCONNECT
BATTERIES AND
page 56.
Data
Fig. 49
Fig. 50
4012/16 Diesel, February 1997