Lifting Arms
381
Figure 10
-
4 Hoses and connections
5.
Check for loose nuts and bolts.
6.
Check the arm stowed limit switch.
For more information, see
Adjusting Arm Stowed Limit Switch
7.
Lubricate the arm moving parts as per the arm lubrication chart on page 415.
8.
Lock out and tag out the vehicle (see
Locking Out and Tagging Out the Vehicle
Arm Hydraulic System
The E
XPERT
™ side loader equipped with the Helping-Hand
TM
automated arm uses an independent
hydraulic valve to control all arm functions. This valve is of the proportional type, meaning that the
amount of flow coming out of it depends on the position of the spool.
Figure 10
-
5 Proportional valve
Arm in/out
Arm up/
down
Gripper
open/close
Out: lever to left - In: lever to right
Down: lever to left
Up: lever to right
Close: lever to left
Open: lever to right
Summary of Contents for EXPERT
Page 1: ...EXPERT TM MAINTENANCE MANUAL...
Page 2: ......
Page 3: ...EXPERT MAINTENANCE MANUAL...
Page 10: ...viii Table of Contents...
Page 18: ...8 Introduction...
Page 244: ...234 General Maintenance...
Page 251: ...Lubrication 241 Figure 4 11 Glass compartment lubrication chart optional...
Page 252: ...242 Lubrication Figure 4 12 EXPERT lubrication chart...
Page 264: ...254 Lubrication...
Page 320: ...310 Hydraulic System...
Page 357: ...Troubleshooting 349...
Page 358: ...350 Troubleshooting...
Page 386: ...378 Multiplexing...