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
Transmission
8-22 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
3. Using a DMM set to meter resistance, test for resistance between
blade 86 and blade 85. A Bosch brand relay should meter 85 ±5 W. A
Potter & Brummfield brand relay should meter 90 ±10% W.
4. Connect a 12 volt lead to blade 86. Connect a ground lead to blade 85.
Using a DMM set to test continuity, test for continuity between blade 30
and blade 87.
Note:With 12 volts at blade 86 and blade 85 grounded, continuity between
blade 30 and blade 87 must be present; if not, replace the relay.
5. Disconnect the 12 volt lead to blade 86. Using a DMM set to test
continuity, test for continuity between blade 30 and blade 87A.
Note:With no 12 volt signal at blade 86, continuity between blade 30 and
blade 87A must be present; if not, replace the relay.