16-16. BOOM EXTEND CYLINDER - REPLACE/REPAIR (Contd)
Remove extend cylinder (18) with extend cylinder
anchor (17) as a unit.
Remove cylinder from sling with care to prevent part damage.
Remove two snap rings (19), one shaft (20) and
extend cylinder anchor (17).
Remove two hex head capscrews (21), two nuts
(22) and two buckling braces (23 and 24).
Remove two socket head capscrews (25) and
wear pad (26).
USE A VISE WITH SOFT JAWS TO SECURE
CYLINDER IN A HORIZONTAL POSITION FOR
Hydraulic oil, under pressure, can remain within cylinder after
disconnecting hydraulic hoses. To avoid severe personal injury,
slowly loosen counterbalance valve (27) or (28) and allow
pressure to escape before removing valve entirely.
REMOVE TWO COUNTERBALANCE VALVES (27
Note and mark location of counterbalance valves (27 and 28)
for use during assembly. The valves (27 and 28) are not