Lull 644E-42 Operation Manual - Manual (Page 102)

100 Model 644E Origin 3/04
Emergency Operations
1. Clear the area of any unnecessary personnel.
2. Block all four wheels.
3. If the load is in a position where it can be removed safely, completely
remove the load from the carriage; otherwise, leave the load in place.
4. Temporarily block up or support the outer boom.
NORMAL STEPS
HYDRAULIC LINE
THAT FAILED
FOLLOW THIS
STEP IF PARTS
ARE AVAILABLE
FOLLOW THIS
STEP IF PARTS
ARE NOT
AVAILABLE
BOOM LIFT LINE
(LIFT CYLINDER TO BLOCK OR
BLOCK TO FRAME BULKHEAD) STEP 1 STEP 2
BOOM LOWER LINE
(LIFT CYLINDER TO BLOCK OR
BLOCK TO FRAME BULKHEAD) STEP 1 Refer to STEP 1
BOOM EXTEND LINE
(EXTEND CYLINDER TO BLOCK OR
BLOCK TO FRAME BULKHEAD)
STEP 1 STEP 2
BOOM RETRACT LINE
(EXTEND CYLINDER TO BLOCK OR
BLOCK TO FRAME BULKHEAD)
STEP 1 Refer to STEP 1
STEP 1
WARNING:
DO NOT get under a raised boom unless the boom
is blocked up. Always block the boom before doing any servicing that
requires the boom to be up.
WARNING:
Wear protective clothing and proper eye protection
when working with or around hydraulic oil. Wait for hydraulic oil to cool
before attempting to repair the failure. Hot hydraulic oil can cause severe
burns and other serious injury.