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Service Guide ML390/391
Chapter 3 Maintenance & Disassembly
3.2.26 Tractor Assembly
NOTE:
Horizontal movement of the left tractor is restricted by a stopper on the lower cover.
· Perform these procedures:
3.2.01
,3.2.02 , 3.2.04 , 3.2.22 , 3.2.25 .
· Use a needle nose pliers to release the claw (1) of the tractor gear (2) from the groove (3) in the lower
tractor feed shaft (4). The lower tractor feed shaft is square.
· Remove the tractor gear.
· Lift the lower tractor feed shaft above the guide (5).
· Slide the lower tractor feed shaft in the direction of arrow B until the C side is free of the guide hole (6).
· Lift the upper tractor feed shaft (7) above the guide (8). The upper tractor feed shaft is round.
· Remove the tractor assembly (9).
· Raise the lock levers (10) on the left (11) and right (12) tractor assemblies.
· Remove the left tractor assembly, the sheet guide (13), and the right tractor assembly.
NOTES:
Installation
The tractors must be synchronized. The pins (14) on the left and right tractors must be aligned when
installed. Also, verify that the guide holes (15) in the tractor drive gears are facing the same direction.
The left tractor assembly must be positioned to the left (line feed motor side) of the plastic tab and ground
plate. This limits movement and correctly positions the paper against the paper end sensor.
When lubricating, refer to Section 3.5 of this Service Handbook
.
RSPL A B C B.2.10
P/N 51216101 Gear: Tractor All RSPL A B C B.
B.2.05
, B.2.07
P/N 50062101 Frame: Tractor (L) Assembly All RSPL A B C
B.2.10
P/N 50062001 Frame: Tractor (R) Assembly All RSPL A B C
B.2.10
P/N 51109501 Shaft: Drive Both 90 RSPL A B C
B.2.10
P/N 51109502 Shaft: Drive Both 91 RSPL A B C
B.2.10
P/N 51109602 Shaft: Lock 391 RSPL A B C
B.2.10
P/N 51111201 Shaft: Lock Both 90 RSPL A B C
B.2.10
P/N 51111202 Shaft: Lock 391+ RSPL A B C
B.2.10
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