TECHNICAL CHARACTERISTICS
GTZZ14EJ&16EJ Maintenance Manual
17
© May 2023
Table 3-16 (Continued)
ITEM GTZZ14EJ GTZZ16EJ
Max travel speed
-operating
130～140s 130～140s
Brake distance at
maximum speed in
high gear
S≤2m
(6.6ft)
S≤2m
(6.6ft)
a) The movement speed depends on the start point
and end point of the movement, rather than on the
controls or switches.
b) The test results of drive speed vary with tires of
different specifications.
c) All the speed tests should be conducted from the
platform controller. The test results will differ if tested
from the ground controller.
d) All the tests should be conducted with the
hydraulic oil temperature at 50～60℃ (122～140℉).
If the hydraulic oil temperature is too low, the test
results will be affected.
Test requirements:
Raise/lower the main boom : With the articulated
boom fully lowered, and the telescopic boom fully re-
tracted, raise the main boom from the lowest to the high-
est and lower the main boom from the highest to the
lowest for two times.
Raise/lower the articulated boom : Raise the articu-
lated boom from the lowest to the highest and lower the
articulated boom from the highest to the lowest for two
times.
Rotate the turntable : With the boom centered, rotate
the turntable through two full cycles.
Extend/retract the main boom : With the main boom
horizontally positioned, extend the main boom from fully
retracted to fully extended position, and retract the main
boom from fully extended to fully retracted position for
two times.
Rotate the platform : With the platform horizontal, ro-
tate the platform from the leftmost to the rightmost, and
rotate the platform from the rightmost to the leftmost.
Test twice.
Raise/lower the jib boom : With the platform horizon-
tal, raise the jib boom from the lowest to the highest,
and lower the jib boom from the highest to the lowest for
two times.
Travel-stowed position : With the machine in stowed
position on level surface, switch to the high gear, and
push the travel joystick to the maximum travel distance
to drive forward and reverse for 30m (98.4ft) separately
for two times.
Travel-operating position : With the machine in
stowed position on level surface, push the travel joystick
to the maximum travel distance to drive forward and re-
verse for 30m (98.4ft) separately for two times.
Brake distance at maximum speed in high gear : As
indicated by the “travel-stowed position” test, once the
machine reaches the maximum travel speed, immedi-
ately release the joystick (starting timing) until the ma-
chine stops. Test twice.
3.4 WEIGHT OF MAJOR
COMPONENTS
• Never attempt to move heavy components
without the assistance of mechanical
equipment.
• It is forbidden to place heavy components in
an unstable position.
Table 3-17
Component
GTZZ14EJ GTZZ16EJ
Chassis assembly 3092kg (6817lb) 3143kg (6929lb)
Turntable assembly 3511kg (7740lb) 3511kg (7740lb)
Boom assembly
1301kg (2868lb) 1371kg (3023lb)
Base boom
103.3kg (227.7lb) 127.7kg (281.5lb)
Telescopic boom 70.1kg (154.5lb) 87.3kg (192.5lb)
Lower connecting rack 150kg (330.7lb) 150kg (330.7lb)
Lower articulated boom
180.9kg (399lb) 180.9kg (399lb)
Connecting rod 25.4kg (56lb) 25.4kg (56lb)
Upper connecting rack 57.5kg (126.8lb) 57.5kg (126.8lb)
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