Safety
Tigercat 822D/L822D Feller Buncher
ER BOOM SYSTEM
A
WARNING This machine is equipped with an ER boom system. Because of this, it may behave in an unexpected manner compared to a conventional boom system.
B 822D-100
A XA2-A1 Expansion Module B Multi-pin Connector
6. Disconnect the multi-pin connector from the XA2-A1 expansion module (right engine frame). A
Greater attention is required when servicing the ER Boom System as certain hydraulic circuits on this machine are inter-connected in order to provide level head travel and to recirculate hydraulic oil to reduce heat generation and fuel consumption. As a result, disconnecting hydraulic lines from one cylinder may release pressure in a different cylinder at the same time. Before attempting to disconnect hydraulic hoses or perform work on the boom system: The machine must be parked on level ground with the head laying flat on the ground.
B
The stick cylinders must be fully extended or the hoist cylinder must be fully retracted. The tip of the stick boom must be supported.
LX830D-030
A XA2-A0 Expansion Module B Multi-pin Connector
7. Disconnect the multi-pin connector from the XA2-A0 expansion module (hydraulic tank area). A
B
822D-013
A XS2-A0 Expansion Module B Multi-pin Connector
8. Disconnect the multi-pin connector from the XS2-A0 expansion module located inside the electrical panel in the back-right corner of the cab. 1.24
