Upright X26N, Service & Parts Manual

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Page 4-2
Troubleshooting
4.2 - Troubleshooting
4.2 T
ROUBLESHOOTING
1. Verify your problem.
• Do a full function test from both the platform and chassis controls, and note all func-
tions that are not operating correctly.
2. Narrow the possible causes of the malfunction.
• Use the troubleshooting guide to determine which components are common to all
circuits that are not functioning correctly.
3. Identify the problem component.
• Test components that are common to all circuits that are not functioning correctly.
Remember to check wires and terminals between suspect components. Be sure to
check connections to battery negative.
4. Repair or replace any component found to be faulty.
5. Verify that repair is complete.
• Do a full function test from both the platform and chassis controls to verify that all
functions are operating correctly and that the machine is performing to specified val-
ues.
S
PECIAL
T
OOLS
Following is a list of tools which may be required to perform certain maintenance proce-
dures on the X-Series work platforms.
• Flow Meter with Pressure Gauge
(P/N 067040-000)
• 0-69 bar (0-1000 psi ) Hydraulic Pressure Gauge with Adapter Fittings (P/N 014124-
010)
• 0-207 bar (0-3000 psi) Hydraulic Pressure Gauge with Adapter Fittings (P/N
014124-030)
• Adapter Fitting (P/N 063965-002)
• Inclinometer (P/N 010119-000)
• Crimping Tool (P/N 028800-009)
• Terminal Removal Tool (P/N 028800-006)
A
DJUSTMENT
P
ROCEDURES
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 gauge of appropriate range to the test port located on the hydraulic
manifold.
Correct pressure settings are listed in the hydraulic schematic.
C
HECKING
P
UMP
P
RESSURES
Remove hose from pump port and connect pressure gauge.