MAINTENANCE
MACHETE BOOM 3/09 Maintenanc e Sec tio n 4- 9
©2009 Alamo Group Inc.
MAINTENANCE
Before installing the spindle (with the bearing pressed on it), lubricate the rubber portion of the seal. This will
reduce the chance of the Seal being tor n by the inst allation of the spindle and is a ne cessar y step when se tting
the rolling Torque.
T urn the Spindle Housing Up side Down and inse rt the spi ndle (with the bearing pr essed on to it) into the spindle
housing until the bearing cone contacts the cup in the Housing. During this step take care not to damage the
seal.
While supporting the Spindle and Housing turn the assembly over so that the assembly is setting on the
spindle.
Install the up per bearing (4) on the spindle shaft (1).
After the Uppe r Bearing is inst alled, insta ll the nut (5) with the chamfer fa cing up. Run the nut down aga inst the
bearing, but do not torque the nut at this time. Clamp the spindle Housing in a vise so that the spindle shaft
can rotate. Tighten the nut until the spindle shaft has a rolling torque of 25 in-lbs (that is it takes 25 in-lbs to
rotate the spindle shaft).
Install the tanged lockwasher (6) with the outside prongs facing upward.
Install the top nut (5) with the chamfe r facing down. Block the spindle to keep it fro m rotating an d torque the top
nut to a minimum of 100 ft-lbs. Bend the tang of the lockwasher to fit into one of the grooves of the top nut.
Install vent plug (8) and Grease Fitting (9).
Fill spindle assembly with NLGI EP#2 Grease (Approx 22 oz.).