Installing The Hydraulic Hoses And Tubes - Toro ProLine H800 Service Manual

Installing the Hydraulic Hoses and Tubes

Hydraulic System: General Information
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1. Tube or hose 2.
1. Ensure that all the threads, the sealing surfaces of the hose/tube, and the
fitting are free of burrs, nicks, scratches, or unwanted material.
2. Align the hose/tube against the body of the fitting so that the face of the
hose/tube sleeve fully touches the face of the fitting.
Note: It may be necessary to use a drive-adapter wrench (e.g., crowfoot
wrench) to install a hydraulic fitting; refer to
When Using a Drive-Adapter Wrench (page
3. Use your hand to thread the swivel nut onto the fitting. While you hold the
hose/tube in alignment with a wrench, use a torque wrench to tighten the
swivel nut to the recommended torque value within the specified range of
torque values; refer to the
The hydraulic hoses used on this machine have BSPP (British
Standard Parallel Pipe) threads. The hydraulic hoses used on
this machine have ORFS (O-Ring Face Seal) threads. If the hoses
are replaced, ensure that the replacement has the correct type of
threads, or component damage and leakage will occur.
Hose/Tube Installation Torque Table
Size
3/8 BSPP
6 ORFS
8 ORFS
10 ORFS
12 ORFS
16 ORFS
Figure 24
Swivel nut 3. O-ring
Hose/Tube Installation Torque Table (page
IMPORTANT
Hose/Tube Thread Size
19
11/16–16
13/16–16
1–14
1-3/16–12
1-7/16–12
Page 5–8
4. Fitting body
Calculating the Torque Values
2–9).
Installation Torque
30 to 35 N∙m (22 to 26 ft-lb)
37 to 44 N∙m (27 to 33 ft-lb)
51 to 63 N∙m (37 to 47 ft-lb)
82 to 100 N∙m (60 to 74 ft-lb)
116 to 142 N∙m (85 to 105 ft-lb)
150 to 184 N∙m (110 to 136 ft-lb)
ProLine H800
19241SL Rev A
5–8).