John Deere CD4039DF008 - Manual (Page 56)

Maintenance/1000 hours/1 year
DPSG,CD03523,35 –19–13JUL99–4/4
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.
35-5
112699
PN=56