Operation and maintenance manual

Section 120-0010
Transmission - Transmission and Mounting
SM 2124 Rev 3 8-03
26
21. Check to make certain that all necessary line and
cable disconnections have been made before lifting the
transmission.
22. Carefully raise the transmission ensuring that no
lines, cables or components foul during removal.
When the transmission is clear of the frame
assembly, move to a suitable work area and mount
securely on a work stand.
23. Remove front isolation mounts (2) from frame
mounts and replace if required.
DISASSEMBLY
Numbers in parentheses refer to Fig. 1, unless
otherwise specified.
1. Remove mounting hardware securing retarder
solenoid, differential lock solenoid and pressure
reducing valve to front bracket assembly (1).
Remove items from front bracket assembly (1).
2. Remove bolts (12), lockwashers (11) and front
bracket assembly (1) from the transmission.
3. Remove bolts (10), lockwashers (9) and LH
bracket (7) from the transmission. Remove isolation
mount (8) from LH bracket (7) and replace if required.
4. Remove bolts (10), lockwashers (9) and RH bracket
(13) from the transmission. Remove isolation mount (8)
from RH bracket (13) and replace if required.
5. Remove mounting hardware securing main
hydraulic pump to the transmission power takeoff.
Refer to Section 230-0050, MAIN HYDRAULIC
PUMP.
6. Remove mounting hardware securing brake pump
to the transmission power takeoff. Refer to Section
250-0040, BRAKE PUMP.
7. If required, identify and tag electrical connections
to engine speed sensor, output speed sensor, central
gear train sensor and turbine speed sensor (5, 6, 7 &
8, Fig. 2) and remove sensors from the transmission.
8. If required, identify and tag electrical connections
to oil temperature sender (gauge) (9, Fig. 2) and
retarder oil temperature sender (1, Fig. 2) and
remove from the top of the transmission.
9. Remove locknut (20), bolt (21), lockwasher (22)
and clamp (17) securing dipstick tube (15) assembly to
bracket (16). Remove screws (23), dipstick tube (15)
assembly and gasket (24) from the transmission.
10. Refer to transmission manufacturers service
manual if transmission service or repair is required.
INSPECTION
Numbers in parentheses refer to Fig. 1.
1. Check front bracket assembly (1), LH bracket (7),
RH bracket (13) and frame mounting brackets for
cracks and damage. Repair or replace as required.
2. Check general condition of transmission assembly
for wear and damage. Check for worn or damaged
driveline flanges and excessive wear on mounting
holes.
3. Check condition of all electrical harnesses and
connections and repair/replace as required. Check
condition of all hydraulic lines on the transmission
and replace if damaged.
ASSEMBLY
Numbers in parentheses refer to Fig. 1, unless
otherwise specified.
Note: Tighten all fasteners without special torques
specified to standard torques listed in Section 300-
0080, STANDARD BOLT AND NUT TORQUE
SPECIFICATIONS.
1. Install new gasket (24) on dipstick tube (15)
assembly and secure assembly to the transmission
with screws (23). Secure dipstick tube (15) to
bracket (16) with bolt (21), lockwasher (22), clamp
(17) and locknut (20).
2. If removed, install oil temperature sender (gauge)
(9, Fig. 2) and retarder oil temperature sender (9, Fig.
2) in top of the transmission. Tighten electrical
connection securely.
3. If removed, install engine speed sensor, output
speed sensor, central gear train sensor and turbine
speed sensor (5, 6, 7 & 8, Fig. 2) in the transmission
as shown in Fig. 2. Tighten electrical connections
securely.
4. Install main hydraulic pump to the transmission
power takeoff and secure using mounting hardware
removed at Disassembly. Refer to Section 230-0050,
MAIN HYDRAULIC PUMP.