Testing Rear Oscillation Lock Circuit; Table 7-1: Rear Oscillation Lock Circuit Test Matrix - JLG Lull 1044C-54 II Series Service Manual

Testing Rear Oscillation Lock Circuit

S1
OPERATING Proximity
PARAMETERS Switch
Boom below 20° Closed
Service brake
released
Boom below 20° Closed
Service brake applied
Boom below 20° Closed
Service brake applied
Operating Frame Tilt
Boom above 20° Open
Service brake
released
Boom above 20° Open
Service brake applied
Boom above 40° Open
Service Brake
Released
Boom above 40° Open
Service Brake
Applied
Boom above 40° Open
Footswitch
Depressed
31200079
Use Table 7-1 for testing the rear oscillation lock circuit.

Table 7-1: Rear Oscillation Lock Circuit Test Matrix

S2 Boom Boom
Proximity Over 20° Over 40°
Switch Relay Relay
Closed Energized Energized
Closed Energized Energized
Closed Energized Energized
Closed De- Energized
energized
Closed De- Energized
energized
Open De- De-
energized energized
Open De- De-
energized energized
Open De- De-
energized energized
Rear
Osc.
Trans. Rear
Locked
Disconnect Stabilizer
Lamp
Lamp Cylinder
Off Off Floating
Off Off Locked
Off Off Floating
While
Frame Tilt-
ing
On Off Slow
Restricted
Oscillation
On Off Locked
On On Locked
On On Locked
On On Very Slow
Restricted
Oscillation
Frame Tilt and Oscillation
SV1 SV2
Solenoid Solenoid
Valve Valve
Energized Energized
Energized Energized
Energized Energized
De- Energized
energized
De- Energized
energized
De- De-
energized energized
De- De-
energized energized
De- Energized
energized
SV3
Solenoid
Valve
Energized
Energized
Energized
Energized
Energized
De-
energized
De-
energized
De-
energized
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