Usage:
Earlier Shown
(1) Torque for bolt with lubricant on threads ... 1125 ± 100 N·m (820 ± 75 lb ft)
(2) Bore of cylinder (new) ... 82.55 + 0.13 - 0.05 mm (3.250 + .005 - .002 in)
(3) Bore of head (new) ... 51.08 ± 0.03 mm (2.011 ± .001 in)
Diameter of rod (new) ... 50.750 ± 0.038 mm (1.9980 ± .0015 in)
(4) Torque for head with lubricant on threads ... 610 ± 135 N·m (447 ± 100 lb ft)
(5) 9T1471 Spring:
Length under test force ... 77.98 mm (3.070 in)
Test force ... 222.5 ± 46 N (50 ± 10 lb)
Free length after test ... 140.03 mm (5.513 in)
Outside diameter ... 79.22 mm (3.119 in)
9T7287 & 9T7288, 9T7894 & 6E0091
Typical Shown
(1) Torque for bolt with lubricant on threads:
For 9T7287 & 6E0091 ... 1825 ± 175 N·m (1340 ± 130 lb ft)
For 9T7288 ... 1850 ± 175 N·m (1360 ± 130 lb ft)
For 9T7894 ... 1125 ± 100 N·m (820 ± 75 lb ft)
(2) Bore of cylinder (new):
For 9T7287 & 6E0091 ... 88.90 + 0.13 - 0.05 mm (3.500 + .005 - .002 in)
For 9T7288 ... 95.25 + 0.13 - 0.05 mm (3.750 + .005 - .002 in)
For 9T7894 ... 82.55 + 0.13 - 0.05 mm (3.250 + .005 - .002 in)
(3) Bore of head (new):
For 9T7287 & 6E0091 ... 63.78 ± 0.03 mm (2.511 ± .001 in)
For 9T7288 ... 70.13 ± 0.03 mm (2.761 ± .001 in)
For 9T7894 ... 51.08 ± 0.03 mm (2.011 ± .001 in)
(3) Diameter of rod (new):
For 9T7287 & 6E0091 ... 63.450 ± 0.038 mm (2.4980 ± .0015 in)
For 9T7288 ... 69.800 ± 0.038 mm (2.7480 ± .0015 in)
For 9T7894 ... 50.750 ± 0.038 mm (1.9980 ± .0015 in)
(4) Torque for head with lubricant on threads:
For 9T7287 & 9T7288 ... 900 ± 130 N·m (660 ± 95 lb ft)
For 6E0091 ... 600 ± 130 N·m (440 ± 95 lb ft)
For 9T7894 ... 610 ± 135 N·m (447 ± 100 lb ft)
Backhoe Bucket Cylinder Drift
Maximum permissible drift of ... 10 mm (.40 in)
38°C (100°F) oil temperature ... 5 minutes
49°C (120°F) ... 3.2 minutes
66°C (150°F) ... 1.7 minutes
82°C (180°F) ... 1.1 minutes