APPENDIX
4-3
550E MM149 (12--96)
HYDRAULIC FITTING INFORMATION
HYDRAULIC TAPERED PIPE FITTING (NPT)
TORQUE CHART
NOTE: Ratings listed are when using teflon
thread seal.
Size
Minimum
Maximum
Torque
Torque
1/4 NPT
10 ft lb (14 Nm)
30 ft lb (41 Nm)
1/2 NPT
25 ft lb (34 Nm)
50 ft lb (68 Nm)
3/4 NPT
50 ft lb (68 Nm)
100 ft lb (136 Nm)
HYDRAULIC TAPERED SEAT FITTING (JIC)
TORQUE CHART
Tube
Thread
Maximum
O.D. (in)
Size
Torque
0.25
0.44--20
9 ft lb (12 Nm)
0.38
0.56--18
20 ft lb (27 Nm)
0.50
0.75--16
30 ft lb (41 Nm)
0.62
0.88--14
40 ft lb (54 Nm)
0.75
1.12--12
70 ft lb (95 Nm)
1.0
1.31--12
90 ft lb (122 Nm)
HYDRAULIC O--RING FITTING TORQUE
CHART
Tube
Thread
Minimum
Maximum
O.D.(in)
Size
Torque
Torque
0.25
0.44--20
6 ft lb (8 Nm)
9 ft lb (12 Nm)
0.38
0.56--18
13 ft lb (18 Nm)
20 ft lb (27 Nm)
*10 ft lb (14 Nm)
12 ft lb (16 Nm)
0.50
0.75--16
20 ft lb (27 Nm)
30 ft lb (41 Nm)
*21 ft lb (28 Nm)
24 ft lb (33 Nm)
0.62
0.88--14
25 ft lb (34 Nm)
40 ft lb (54 Nm)
0.75
1.12--12
45 ft lb (61 Nm)
70 ft lb (95 Nm)
1.0
1.31--12
60 ft lb (81 Nm)
90 ft lb (122 Nm)
NOTE: Do not use sealant on o--ring threads.
*Aluminum bodied components
Summary of Contents for 550
Page 10: ...GENERAL INFORMATION 550E MM149 3 94 viii ...
Page 12: ...OPERATION 550E MM149 3 91 2 2 ...
Page 30: ...OPERATION 550E MM149 9 00 2 20 ...
Page 32: ...MAINTENANCE 550E MM149 3 91 3 2 ...
Page 62: ...MAINTENANCE 550E MM149 2 05 3 32 ...
Page 66: ...APPENDIX 550E MM149 3 91 4 4 ...
Page 74: ...STANDARD PARTS 550E MM149 5 01 6 4 Fig 2 Replacement Brushes 1 ...
Page 96: ...STANDARD PARTS 550E MM149 5 01 6 26 Fig 17 Electric Motor Group 1 2 3 4 5 6 ...
Page 105: ...STANDARD PARTS 6 35 550E MM149 5 01 Fig 23 Electrical Schematic 1 2 3 4 5 01228 550E ...
Page 106: ...STANDARD PARTS 550E MM149 5 01 6 36 Fig 23 Electrical Schematic 1 2 3 4 5 01228 550E ...
Page 117: ...STANDARD PARTS 6 47 550E MM149 5 01 Fig 31 Hydraulic Schematic 001330 005607 02361 550E ...
Page 118: ...STANDARD PARTS 550E MM149 5 01 6 48 Fig 32 Hydraulic Schematic 005608 11118 550E ...
Page 168: ...OPTIONS 550E MM149 9 99 8 18 ...
Page 182: ...BREAKDOWNS 550E MM149 10 10 9 14 ...