Paccar PX-7, Руководство оператора

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WARNING
Turn off the engine and place the igni-
tion switch in the OFF position before
disconnecting the battery clamps. DO
NOT place any tools or other materials
on top of or close to the batteries. This
can cause a dangerous high current
short circuit and, in the worst case, a
battery explosion. Keep all objects
away from the battery terminals. Al-
ways break the contact between the
battery clamp and the negative termi-
nal before working on the vehicle.
Working on a vehicle while the battery
is connected may result in electrical in-
jury or damage. Always disconnect the
battery at the negative terminal when
performing service procedures. Failure
to comply may result in death, person-
al injury or equipment damage.
WARNING
Electrical shock hazard: Never discon-
nect the battery clamp when the en-
gine is running. Disconnecting the bat-
tery clamps while the engine is running
may result in death, personal injury or
equipment damage from electrical arc-
ing or damage to electrical compo-
nents.
1. Disconnect the chassis battery
cable at the negative battery
terminal.
2. Place an oil collection pan directly
under the oil filter.
Oil Filter Removal
CAUTION
DO NOT replace the engine oil filter
and fuel filters at the same time. Doing
so may lead to a "dry start" condition
where the engine starts before ade-
quate oil pressure has reached all en-
gine components, leading to extreme
engine damage. Always remove and
replace one filter at a time before mov-
ing on to the next.
Follow the procedure below after reading
"Oil Filter Removal Preparation."
1. Use a clean rag to wipe off the oil
filter(s) and surrounding area to
ensure dirt does contaminate the
oil filter module.
CAUTION
Dirt in the engine oil lubrication system
can lead to significant damage to the
engine. Failure to comply may result in
equipment or property damage.
2. Unscrew the oil filter a few turns to
allow the oil to drain from the filter.
3. Remove the oil filter from the filter
module. Ensure there is no dirt or
old oil on the sealing surface of the
oil filter module.
4. Remove the O-ring from the screw
cap.
WARNING
Lubricating oil can cause skin irritation
or skin injury. To prevent skin injury,
avoid unnecessary contact with the lu-
bricating oil. Wear protective clothing,
eye wear, and gloves when handling
lubricating oil. Failure to comply may
result in personal injury.
ENGINE MAINTENANCE - Maintenance Procedures
56 Y53-1183-1G1 (05/19)
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