John Deere z425 - Manual (Page 29)

Service Transmission - 28
SERVICE TRANSMISSION
MX38109
Picture Note: Z225 shown.
MX38110
Picture Note: Z425 shown. Z445 similar.
MX38118
Picture Note: Closeup of Z445 shown.
3. Remove locking pin (A) on black yoke end (B), then remove yoke end
from arm (C). Turn black yoke end on rod (D) in (clockwise) to decrease
forward creep and out (counterclockwise) to decrease reverse creep.
Repeat procedure, as necessary, on opposite side (E). Install yoke ends
back onto arms and secure with locking pin.
Adjusting Tracking
If the machine does not track in a straight line while going in full forward
position, adjust the tracking:
1. Park machine safely. (See Parking Safely in the SAFETY section.)
MX37941
2. Adjust tracking:
NOTE: Tracking bolts limit top forward speed. If both levers hit
against the tracking bolts, turn both bolts counterclockwise equal
amounts until only one bolt contacts the lever. This will achieve
maximum forward speed.
• If machine tracks to the left, turn tracking bolt (A) clockwise.
• If machine tracks to the right, turn tracking bolt (B) clockwise.
Cleaning Transaxle Cooling Fans (Z225)
1. Park machine safely. (See Parking Safely in the SAFETY section.)
B
D
E
C
E
D
B
C
C
A
D
B
c
CAUTION: Avoid injury! Compressed air can cause debris
to fly a long distance.
• Clear work area of bystanders.
• Wear eye protection when using compressed air for cleaning
purposes.
• Reduce compressed air pressure to 210 kPa (30 psi).
IMPORTANT: Avoid damage! To ensure proper cooling, keep the
transaxle cooling fins and surrounding area clean at all times.
Operating the transaxle with obstructed cooling fins could cause
damage due to overheating.
A
B