Operation and Maintenance Manual
Second Edition
21
Maxiton GTJZ
Hydraulic Hose and Fitting Torque
Specifications
Your machine is equipped with EMB Seal-Lok
®
O-ring
face seal fittings and hose ends. Machines that utilize
EMB Seal-Lok
®
O-ring face seal hoses and fittings
require that the fittings and hose ends be torqued to
specification when they are removed and installed or
when new hoses or fittings are installed.
Hydraulic Hose and Fitting Torque
Specifications
tube fitting
Install Size
Installing into...
Nm
-4
Aluminum
14.9
Steel
21.7
-6
Aluminum
31.2
Steel
47.5
-8
Aluminum
54.2
Steel
81.3
-10
Aluminum
93.6
Steel
142.4
-12
Aluminum
126.1
Steel
190
-16
Aluminum
188.5
Steel
284.7
-20
Aluminum
233.2
Steel
352.5
-24
Aluminum
282
Steel
427.1
Hydraulic Hose and Fitting Torque
Specifications
hose end
Install Size
Nm
-4
24.4
-6
36.6
-8
54.2
-10
85.4
-12
122
-16
162.7
-20
190
-24
223.7
Torque Procedure
1
Replace the O-ring. The O-ring must be replaced
anytime the seal has been broken. The O-ring cannot
be re-used if the fitting or hose end has been tightened
beyond finger tight.
2
Lubricate the O-ring before installation.
3
Be sure that the face seal O-ring is seated and
retained properly.
4
Position the tube and nut squarely on the face
seal end of the fitting and tighten the nut finger
tight.
5
Tighten the nut or fitting to the appropriate torque
per given size as shown in the table above.
6
Operate all machine functions and inspect the
hoses and fittings and related components to be
sure that there are no leaks.
Theory of Operation
Power Source
The GTJZ06/08/10/12/14 is powered by 24V motor
Hydraulic System
All machine functions are performed by the hydraulic
system. The hydraulic system can be divided into two
groups: Steer functions and Drive functions.
