FERRI ZMT - Fastening the Hydraulic Hose Couplings

83
Rev. 5.1
ZMT-ZMTE
ROUTINE MAINTENANCE
07-Serraggio viti
7.6 Fastening the hydraulic hose couplings
Check that the hydraulic hose couplings have been correctly fastened (TAB 2).
TAB 2
Screw thread type
Tightening torque
MIN. N.m
Tightening torque
MAX. N.m
1/8 12 14
1/4 14 16
3/8 25 28
1/2 45 60
5/8 55 70
3/4 90 110
1” 120 140
1” 1/4 170 190
1” 1/2 200 245
Tightening torque table for the cylindrical screw thread GAS UNI ISO 228 1 83 - BSPP
CAUTION
TAB 3
Screw thread type
Tightening torque
N.m
M12 x 1.5 20
M14 x 1.5 38
M16 x 1.5 45
M18 x 1.5 51
M20 x 1.5 58
M22 x 1.5 74
M24 x 1.5 74
M26 x 1.5 105
M30 x 2 135
M36 x 2 166
M45 x 2 290
M52 x 2 330
Tightening torque table for metric thread screws UNI 5541 - 65 UNI 5542 - 65
CAUTION