Labounty MDG Series, Безопасность, эксплуатация и обслуживание

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MDG Operating & Maintenance Manual | 13
HYDRAULIC INSPECTION
Wear personal protection equipment at all times. This
includes eye protection, hard hat, steel toe shoes,
leather gloves and hearing protection.
Trapped hydraulic pressure may be present after the
base machine is shut off. Extreme caution must be
taken when removing hydraulic hoses or injury or death
could result.
1. Locate flat, hard ground and place the attachment on the ground.
2. Check the hydraulic oil reservoir and ensure it is filled.
3. Visually inspect all hydraulic hoses for leaks or damage.
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.
Replace Rotation bolts after 1500 hrs / 2 years.
You may need to rotate MDG to access bolts.
Size Torque
M8 30 Ft/Lbs (40 Nm)
M10 59 Ft/Lbs (80 Nm)
M12 96 Ft/Lbs (130 Nm)
M12 x 1.25
(Fine Pitch)
81 Ft/Lbs (110 Nm)
M14 148 Ft/Lbs (200 Nm)
M16 221 Ft/Lbs (300 Nm)
M20 443 Ft/Lbs (600 Nm)
M24 738 Ft/Lbs (1,000 Nm)
M27 1,106 Ft/Lbs (1,500 Nm)
M30 1,475 Ft/Lbs (2,000 Nm)
M36 2,655 Ft/Lbs (3,600 Nm)
M39 3,393 Ft/Lbs (4,600 Nm)
REPLACE WEAR BLADES
When the cutting blades of the jaw shells are worn down to such a degree that the grapple can no longer close fully, all
work should be suspended immediately and the exchangeable wear blades must be replaced.
Note: The wear blades also function as a final stop for the cylinder. Neglect or excessive wear can lead to damage.
1. Remove the bolts and nuts that connect each wear blade to the MDG (“Figure 8” on page 14). Discard the used
blades and fasteners.
2. Attach a wear blade to each jaw of the MDG. Ensure that the conical side of the nuts are facing towards the jaw
when securing each screw, as shown in “Figure 9” on page 14.
3. Torque the nuts using the bolt torque table on page 13.
4. To ensure the wear blades are securely fastened to the shell, it is recommended to place some additional spot
welding between the blades and jaw.
5. Cover the welded area with a heat shield and allow to cool completely.