3-80
Item
Description
Service action
Transmission noise
Transmission noise
check
check
Engine running.
Run engine at approximately 1600
rpm.
Drive unit with transmission in each
forward and reverse speed.
LISTEN : Transmission must not
make excessive noise in any range.
Engine rpm must not "lug down" as
unit is shifted between gears.
OK
OK
Check completed.
NOT OK
NOT OK
Go to transmission makes
excessive noise, chapter 2
in this group.
Transmission "quick shift"
Transmission "quick shift"
check
check
Engine running.
Release parking brake and select
T/M shift mode to MANUAL mode.
Shift to 2nd forward.
Drive machine at approximately
5km/h and press gear selector lever
kick down switch or RCV levers
switch once.
LOOK/FEEL
LOOK/FEEL : Transmission must
shift to and remain in 1st gear.
Press gear selector lever kick down
switch once.
LOOK/FEEL
LOOK/FEEL : Transmission must
shift back to 2nd gear.
Shift to (3rd or 4th) gear and press
gear selector lever kick down
switch once.
LOOK/FEEL
LOOK/FEEL : Transmission must
not shift down.
Select T/M shift mode to AL (auto
light) mode.
Drive machine at approximately
90
%
speed of max speed in each
gear (2nd or 3rd or 4th).
Shift to (2nd or 3rd or 4th) gear in
each forward and reverse speed
and press gear selector kick down
lever switch or RCV lever switch
once.
LOOK/FEEL
LOOK/FEEL :
If shift down quickly from current
gear to one step lower speed and
recover to original speed quickly
when push the switch one more
time. (mode 1)
If shifts down from current gear to
one step lower speed when push
the switch everytime and recover
when push the switch in 1st gear.
(mode 2)
OK
OK
Check completed.
NOT OK
NOT OK
Check connector at base
of control valve.
IF OK
IF OK
Go to transmission
controller circuit in group 1.
1
2
3
4
MANUAL mode
1
2
3
4
AL mode
Release
P
Содержание HL955
Страница 557: ...7 6 MEMORANDUM MEMORANDUM ...