MHP Operating & Maintenance Manual
17
MAINTENANCE
INSPECT / TORQUE BOLTS
Inspect all bolts for damage. Check the torque of all bolts and replace any bolt that is damaged or has been
re-torqued more than once. Always use replacement bolts of the same size and class as the one removed.
Unless otherwise specified, use class 10.9 metric hex head cap screws, class 10.9 metric flat head cap screws
and class 12.9 metric socket head cap screws. When installing new bolts, ensure that the bolt is clean and dry.
Note: Some bolts have unique torque specifications. Refer to the parts manual.
• Never use an inferior class fastener. Fastener
failure can cause damage, injury or death.
Torque
Size
Class 10.9
Class 12.9
M10
41 ft. lbs. (55 Nm)
49 ft. lbs. (67 Nm)
M12
71 ft. lbs. (96 Nm)
85 ft. lbs. (116 Nm)
M14
112 ft. lbs. (152 Nm)
136 ft. lbs. (185 Nm)
M16
173 ft. lbs. (235 Nm)
207 ft. lbs. (281 Nm)
M20
335 ft. lbs. (454 Nm)
403 ft. lbs. (547 Nm)
M24
579 ft. lbs. (785 Nm)
693 ft. lbs. (939 Nm)
M30
1164 ft. lbs. (1579
Nm)
1391 ft. lbs. (1887
Nm)
Flange Flange Code
Bolt Size
Torque
1.00”
61
M10 x 1.50
42 ft. lbs. (57 Nm)
1.00”
62
M12 x 1.75
70 ft. lbs. (95 Nm)
GENERAL FASTENER TORQUE
Figure 18
HYDRAULIC FLANGE FASTENER TORQUE
Figure 19
CHECK FOR END PLAY
Check for end play in the main pivot group
BEFORE
performing maintenance on rebar blades.
1. Fully open the jaws.
2.
Lower MHP so the lower jaw is on the ground.
Turn off the base machine.
3. Using a pry-bar between the upper and lower jaw
(Figure 20), attempt to move the jaws.
4. Measure the movement using a dial indicator.
If movement is visible, contact your LaBounty
Dealer or LaBounty Customer Service.
MAIN PIVOT GROUP PRY-BAR LOCATION
Figure 20
