Special Tools; Adjustment Procedures; Checking Pump Preasure; Diagnostics Using Ezcal Display - Snorkel A38E Service Manual

SPECIAL TOOLS

The following is a list of tools which may be required
to perform certain maintenance procedures on the
AB38.
• Flow Meter with Pressure Gauge
(Snorkel P/N: 067040-000).
• 0-69 bar (0-1000 psi) Hydraulic Pressure Gauge with
Adapter Fittings ( Snorkel P/N: 014124-010).
• 0-207 bar (0-3000 psi) Hydraulic Pressure Guage
with Adapter Fittings ( Snorkel P/N: 014124-030).
• Adapter Fitting ( Snorkel P/N: 063965-002).
• Inclinometer ( Snorkel P/N: 010119-000)
• Crimping Tool (Snorkel P/N: 028800-009)
• Terminal Removal Tool ( Snorkel P/N: 028800-006)
• Calibrator EZcal ( Snorkel P/N: 504560-001)
SYSTEM -
1. ENABLED
B+ SUPPLY
TRACTION
PUMP
TILT
HEIGHT
LOAD
OVERLOADED
ELEVATED
2. FUNCTIONS- DRIVE
STEER
LL (LOWER LIFT)
UL (UPPER LIFT)
JIB (N/A)
BASKET
TELE
SLEW
INTERLOCK
3. DIGITALS VERIOUS
4.
ANALOG VERIOUS
5. OUTPUT VERIOUS
5-2
Troubleshooting

ADJUSTMENT PROCEDURES

Hydraulic settings must be checked whenever a
component is repaired or replaced.
Remove counterbalance valves and "bench test"
them if they are suspect.
Connect a pressure guage of appropriate range to
the test port located on the hydraulic manifold.
Correct pressure settings are listed in the hydraulic
schematic.
CHECKING PUMP PRESSURES
Remove hose from pump port and connect
pressure gauge.
DIAGNOSTICS USING EZCAL
DISPLAY
The EZcal Display can be switched into calibration
mode to become an invaluable tool when
troubleshooting on this machine.
Switch the machine on, press and hold Esc for
5 seconds until "SNORKEL EBOOM" is displayed
than select diagnostics, the following menu's are
available:
Display status of joystick trigger or enable switches.
Displays Battery Voltage
Demand ON or OFF, Armature & Field Current and SEM600 controller
Temperature.
Pump Motor Voltage and Current and P600 Controller Tempreture
Displays tilt angle of the machine in X and Y, bothshould be less than 3 degrees
N/A
Displays load as a percentage of SWL
Yes or No
Yes or No
These display the percentage demand for each function.
Displays the condition of all digital inputs to the relevant controller & matrix, refer
to the following table and the circuit diagram on page 6.1 for full list of I/O's.
Displays the condition of all analogue inputs to relevant controller & matrix.
Displays the condition of all outputs from the relevant controller & matrix.
Section
5.0
A38E Work Platform