End Of Season Or When Required Lpg Engine - Ransomes HIGHWAY 2130 Parts And Maintenance Manual

5 LUBRICATION AND MAINTENANCE
GB
MAINTENANCE
5.12.1 END OF SEASON or when required
LPG Engine
Change Spark Plugs
1. Remove the lead from each spark plug by
grasping, twisting and then pulling the
moulded boot on the end of the lead.
CAUTION
Do not pull directly on the lead as this
could cause the wire connection inside
the boot to become seperated.
2. After lossening each spark plug one or two
turns with a proper spark plug spanner,
clean the area around each spark plug port
with compressed air then remove the
spark plugs.
CAUTION
When using a compressed air line, safety
goggles must be worn to protect the eyes.
3. Check the gaps of the new spark plugs
with feeler gauges and where necessary,
bend the electrode to achive the specified
gap.
4. Smear the threads of the new spark plugs
with 'Never Seez' then using a proper
spark plug spanner to avoid damaging the
insulators, screw the new spark plugs into
the cylinder head and tighten them to the
the specified torque value.
NOTE: Do not over tighten spark plugs as the gap
may change considerably due to the distortion of the
plug outer shell.
5. Coat the inside of each spark plug boot
with Silicone dielectric compound
D7AZ-19A331-A or equivalent, using a
small screwdriver blade.
6. Re-connect each high tension lead to the
correct spark plug.
Be sure each lead is fully pressed onto each plug
and that the moulded boot is firmly in place.
RANSOMES HIGHWAY 2130
MAINTENANCE AND PARTS MANUAL
GB-19