Service Manual User guide
Table Of Contents
- 10709790_B_644B,6K,844C,8K,1044C,10K_Lull_Service_Mnl
- Quick Reference
- Revision Record
- Table Of Contents
- List Of Figures
- List Of Tables
- Section 1 Safety
- Section 2 Identification & Specifications
- Section 3 General Maintenance
- Section 4 Reference Diagrams
- Section 5 Supply, Pressure & Return Hydraulics
- Section 6 Boom & Transfer
- Section 7 Frame Tilt & Oscillation
- Section 8 Transmission
- Section 9 Brakes
- Section 10 Outriggers
Boom and Transfer
6-162
Service Manual â Models 644B, 6K, 844C, 8K, 1044C, 10K
a. With the outriggers up, extend the boom, noting that Boom
Extension proximity light illuminates when the boom is extended to
specified distance (approximately 21 feet with tilting tower or 25
feet with standard carriage). If light does not illuminate, stop and
retract the boom. See page 6-216 for adjustment procedures.
b. Retract and lower boom to ground and shut off engine.
c. Complete proximity switch adjustment before proceeding to
Step 18.
18. Inspect hydraulic connections for leaks and tighten as necessary.
19. (Ref. Fig. 6-168) Install boom cover (Item 4) with six (6) each
flatwashers (Item 3), lockwashers (Item 2), and nuts (Item 1). Tighten
nuts to 180 in-lbs.
Boom Disassembly
4-Section Boom
1. Remove boom assembly from machine. See page 6-154.
2. Place boom assembly on work stands in upside down position.
CAUTION: To avoid personal and equipment damage, make sure that the
boom is properly supported through this entire procedure.
Note: âKâ Model machines are not equipped with auxiliary hydraulics. For
these models, disregard procedures that refer to auxiliary hydraulic
components. Some models are equipped with an additional set of
auxiliary hydraulics. They will have two (2) additional sets of hoses,
tubes, and mounting hardware than what is mentioned in the
following procedures.