Komatsu D39P-1 Shop Manual

TRANSMISSION GENERAL
7C - 4
2nd Speed Forward
Engine power and torque are delivered through the converter and drive shaft
to the directional (input) shaft (A). As the forward clutch pack is activated, it
engages the forward gear (B) and rotates it in the same direction as the shaft.
The countershaft (C), through the 3rd speed drive gear (D), is rotated in the
opposite direction. As the 2nd speed clutch pack is activated, it engages the
2nd speed driven gear (E) to the range (output) shaft (F). Power from the
countershaft is transferred, through the 2nd speed drive gear (G), to the
range (output) shaft in the opposite direction of rotation. Power is delivered
from the range (output) shaft to the steering and sprocket drives and on out
to the tracks.
3rd Speed Forward
Engine power and torque are delivered through the converter and drive shaft
to the directional (input) shaft (A). As the forward clutch pack is activated, it
engages the forward gear (B) and rotates it in the same direction as the shaft.
The countershaft (C), through the 3rd speed clutch pack, is activated and
engages the 3rd speed driven gear (D) to the range (output) shaft (E). Power
from the 3rd speed drive gear (F) is transferred to the range (output) shaft in
the opposite direction of rotation. Power is delivered from the range (output)
shaft to the steering and sprocket drive and on out to the tracks.
1st Speed Reverse
Engine power and torque are delivered through the torque converter and
drive shaft to the directional (input) shaft (A). As the reverse clutch pack is
activated, it engages the reverse gear (B) and rotates it in the same direction
as the shaft. The countershaft (C), through the reverse idler gear (D) and the
2nd speed drive gear (E), is rotated in the same direction as the directional
(input) shaft. As the 1st speed clutch pack is activated it engages the 1st
speed driven gear (F) to the range (output) shaft (G). Power from the
countershaft is transferred, through the 2nd and 1st speed drive gear (H) and
1st speed driven gear, to the range (output) shaft in the opposite direction of
rotation. Power is delivered from the range (output) shaft to the steering and
sprocket drives and on out to the tracks.
2nd Speed Reverse
Engine power and torque are delivered through the torque converter and
drive shaft to the directional (input) shaft (A). As the reverse clutch pack is
activated, it engages the reverse gear (B) and rotates it in the same direction
as the shaft. The 2nd speed drive gear (C), through the reverse idler gear
(D), is rotated in the same direction as the directional (input) shaft. As the 2nd
speed clutch pack is activated, it engages the 2nd speed driven gear (E) to
the range (output) shaft (F). Power is transferred from the 2nd speed drive
gear to the range (output) shaft through the driven gear and clutch pack in
the opposite direction of rotation from the directional (input) shaft. Power is
delivered from the range (output) shaft to the steering and sprocket drives
and on out to the tracks.

Komatsu D39P-1 Specifications

General

Brand	Komatsu
Model	D39P-1
Category	Excavators
Language	English