Hydraulic Hose And Fitting Torque Specifications - Genie Z-25/8 Service Manual

First Edition • Third Printing

Hydraulic Hose and Fitting Torque Specifications

Your machine is equipped with either 37° flared fittings and hose ends OR Parker Seal-Lok
hose ends. Machines that utilize Parker Seal-Lok
ends be torqued to specification when they are removed and installed or when new hoses or fittings are
installed. Machines equipped with 37° flared fittings and hose ends do not need to be torqued to these
specifications.
Hydraulic Hose and Fitting Torque Specifications
SAE O-ring Boss Port - tube fitting
SAE Dash Installing
Size into...
-4 Aluminum
Steel
-6 Aluminum
Steel
-8 Aluminum
Steel
-10 Aluminum
Steel
-12 Aluminum
Steel
-16 Aluminum
Steel
-20 Aluminum
Steel
-24 Aluminum
Steel
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.
The O-rings used in the Parker
Seal Lok® fittings and hose ends
are a custom-size O-ring. They
are not a standard SAE size
O-ring. They are available in the
O-ring field service kit
(Genie part number 49612).
2 Lubricate the O-ring before installation.
Part No. 41314
hoses and fittings require that the fittings and hose
®
ft. lbs. Nm
11 14.9
16 21.7
23 31.2
35 47.5
40 54.2
60 81.3
69 93.6
105 142.4
93 126.1
140 190
139 188.5
210 284.7
172 233.2
260 352.5
208 282
315 427.1
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Seal-Lok® - hose end
SAE Dash
Size
-4
-6
-8
-10
-12
-16
-20
-24
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.
Section 2 • Specifications
SPECIFICATIONS
fittings and
®
ft. lbs. Nm
18 24.4
27 36.6
40 54.2
63 85.4
90 122
120 162.7
140 190
165 223.7
2 - 5