John Deere CD4039DF008 - Manual (Page 58)

Maintenance/2000 hours/2 years
DPSG,CD03523,36 –19–13JUL99–3/4
RG4776
–UN–31OCT97
A—Front of engine
B—No.1 Piston at TDC compression stroke
C—No.4 Piston at TDC compression stroke
E—Exhaust valve
I—Intake valve
•
4-Cylinder Engine:
NOTE: Firing order is 1-3-4-2.
a. Lock No. 1 piston at TDC compression stroke (B).
b. Adjust valve clearance on No. 1 and 3 exhaust
valves and No.1 and 2 intake valves.
c. Rotate flywheel 360
°
. Lock No. 4 piston at TDC
compression stroke (C).
d. Adjust valve clearance on No. 2 and 4 exhaust
valves and No. 3 and 4 intake valves.
DPSG,CD03523,36 –19–13JUL99–4/4
RG4777
–UN–31OCT97
A—Front of engine
B—No.1 Piston at TDC compression stroke
C—No.6 Piston at TDC compression stroke
E—Exhaust valve
I—Intake valve
•
6-Cylinder Engine:
NOTE: Firing order is 1-5-3-6-2-4.
a. Lock No. 1 piston at TDC compression stroke (B).
b. Adjust valve clearance on No. 1, 3, and 5 exhaust
valves and No. 1, 2, and 4 intake valves.
c. Rotate flywheel 360
°
. Lock No. 6 piston at TDC
compression stroke (C).
d. Adjust valve clearance on No. 2, 4, and 6 exhaust
valves and No. 3, 5, and 6 intake valves.
40-2
112699
PN=58