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Wintex Agro, Vilhelmsborgvej 15, DK-7700 Thisted
+45 97990800, [email protected], www.wintexagro.com
REMOVAL OF DRILLING HEAD / LOWER CHAINS
Tools Required:
Vice
4 mm hex key
6 mm hex key
14 mm spanner
22 mm spanner
Removal
1.
Undo the four M5 x 10 mm hex cap bolts from the drilling head using a 4 mm hex key. The chain and chain blocks will now come apart from
the drilling head.
2.
Undo the four M5 x 10 mm hex cap bolts from the end of each chain block using a 4 mm hex key.
Refit
1.
Using a new chain re-attach the chain blocks to either end of the chain using M5 x 10 mm hex cap bolts and a 4 mm hex key. Use thread
lock on the bolts.
2.
Using four M5 x 10 mm hex cap bolts re-attach the drill head lift / lower chain to the drilling head. Use thread lock.
INSTALL NEW WEAR PARTS IN DRILL HEAD SLEDGE NOW.
3.
Slide the drill head assembly back onto the mast guide rail.
4.
If fitting a new chain, it is important to install a new lower chain sprocket and check the condition of the upper sprocket. When installing a
new lower sprocket, a bush should be used. Sprockets will also require changing if the sprocket has been running on one edge of the
bearing as opposed to the centre of it as shown in the photo below.