New Holland TC21D, Operator'S Manual

Page: 60 / 102

SECTION 3 - LUBRICATION AND MAINTENANCE
3-9
Bleeding the Injector Lines
Bleed the injector lines if:
•
the tractor has run out of fuel.
•
new injectors have been installed.
•
the injection pump has been removed for service
repairs.
To bleed the injector lines:
1. Loosen the injector line fittings, 1, at the injectors.
2. Move the hand throttle control lever to its wide
open position.
3. Crank the engine until air-free fuel flows from
each connection, then tighten the fittings to 24-29
N
⋅
m (18-22 ft. lbs.).
IMPORTANT: If air is not purged from the system,
repeat the above procedures.
Do not crank the engine continuously for more
than 30 seconds as this may cause starting
motor failure.
19983670
1
11
AIR CLEANER
The air cleaner, 1, is accessed by opening the tractor
hood.
The air cleaner assembly contains two elements: an
outer primary element and an inner safety element.
10020242
1
2
2
12
To remove the primary element, loosen the spring
clamps, 2, and remove the end cap from the air
cleaner body to expose the primary element, 3.
10020243
3
13
NOT FOR REPRODUCTION