Install upper housing assembly (21) on arm (35) by sliding arm and roller guides (43) in channel of upper housing
Ensure that arm is under shaft of bevel gear when bevel gear is installed.
Install angle bracket (32) on upper housing
assembly (21) with two square neck bolts (34)
and locknuts (33). Do not tighten locknuts.
Install bevel gear (31) in angle bracket (32) and
upper housing assembly (21).
Apply grease to teeth of bevel gear (31).