Service Manual User guide

Frame Tilt and Oscillation
31200079
7-23
Testing Rear Oscillation Lock Circuit
Use Table 7-1 for testing the rear oscillation lock circuit.
Table 7-1: Rear Oscillation Lock Circuit Test Matrix
OPERATING
PARAMETERS
S1
Proximity
Switch
S2
Proximity
Switch
Boom
Over 20°
Relay
Boom
Over 40°
Relay
Rear
Osc.
Locked
Lamp
Tra ns.
Disconnect
Lamp
Rear
Stabilizer
Cylinder
SV1
Solenoid
Valve
SV2
Solenoid
Valve
SV3
Solenoid
Valve
Boom below 20°
Service brake
released
Closed Closed Energized Energized Off Off Floating Energized Energized Energized
Boom below 20°
Service brake applied
Closed Closed Energized Energized Off Off Locked Energized Energized Energized
Boom below 20°
Service brake applied
Operating Frame Tilt
Closed Closed Energized Energized Off Off Floating
While
Frame Tilt-
ing
Energized Energized Energized
Boom above 20°
Service brake
released
Open Closed De-
energized
Energized On Off Slow
Restricted
Oscillation
De-
energized
Energized Energized
Boom above 20°
Service brake applied
Open Closed De-
energized
Energized On Off Locked De-
energized
Energized Energized
Boom above 40°
Service Brake
Released
Open Open De-
energized
De-
energized
On On Locked De-
energized
De-
energized
De-
energized
Boom above 40°
Service Brake
Applied
Open Open De-
energized
De-
energized
On On Locked De-
energized
De-
energized
De-
energized
Boom above 40°
Footswitch
Depressed
Open Open De-
energized
De-
energized
On On Very Slow
Restricted
Oscillation
De-
energized
Energized De-
energized