Toro Groundsmaster 5900 Series Service Manual page 108

Installing Hydraulic Hoses and Tubes (O-Ring Face Seal)
(continued)
Hydraulic System: General Information
Hose/Tube Installation Torque Table
Fitting Dash Size
4
6
8
10
12
16
20
Flats From Wrench Resistance Table
Size
4 (1/4 inch nominal hose or tubing)
6 (3/8 inch)
8 (1/2 inch)
10 (5/8 inch)
12 (3/4 inch)
16 (1 inch)
5. If a torque wrench is not available or if space at the swivel nut prevents the
use of a torque wrench, use the alternative procedure Flats From Wrench
Resistance (FFWR) given below.
A. Use a wrench to tighten the swivel nut onto the fitting until you feel light
resistance with the wrench—approximately 3.39 N∙m (30 in-lb).
B. Put a mark on the swivel nut and body of the fitting (item 1 in
32). If connecting a hose, hold the hose in alignment with a wrench to
prevent the hose from turning.
C. Use a wrench to tighten the nut to the correct Flats From Wrench
Resistance (compare items 2 and 3 in
Hose/Tube Side Thread Size
(inch)—threads per inch)
9/16—18
11/16—16
13/16—16
1—14
1–3/16—12
1–7/16—12
1–11/16—12
Page 5–8
Installation Torque
25 to 29 N∙m (18 to 22 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)
190 to 233 N∙m (140 to 172 ft-lb)
FFWR
1/2 to 3/4
1/2 to 3/4
1/2 to 3/4
1/2 to 3/4
1/3 to 1/2
1/3 to 1/2
Figure 32).
Groundsmaster
16227SL Rev B
Figure
® 5900 & 5910