Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4b-29
T
R O U B L E S H O O T I N G
- 3 0 8 4 E S
M O D E L
- - T
R O U B L E S H O O T I N G
C
H A R T
T
ROUBLESHOOTING
C
HART
The following chart is a guide to help the technician find the area of a problem. In order to
benefit from the information, you are advised to fully assess the symptoms by operating all
machine functions. There may be some functions that operate while others may not.
Record this information and proceed down the left-hand column until you find the failure
scenario that best fits the problem. Refer to the information provided to the right for possi-
ble causes and remedies. This unit contains a Microprocessor based control system
which contains various safety features designed to protect itself and the operator in the
event of a failure.
It is strongly recommended that the technician use the EZ-cal to read any displayed mes-
sages before proceeding to use this Troubleshooting chart. The EZ-cal scan tool will pro-
vide the technician with detailed information related to the failure.
Information on the use of the EZ-cal tool plus helpful Flow Charts and graphs can be
found earlier in this troubleshooting section. Please read and familiarize yourself with all of
the information provided in the troubleshooting section before attempting to diagnose or
repair the machine.
Table 4b-4: Troubleshooting Chart
Problem Possible Cause Remedy/Solution
General Power Issue
No operation from
upper or lower control
station; no red LED at
GP400.
Main battery switch turned off Located left of lower control box.
Emergency switch pushed in or ignition
switch turned off or defective Upper or lower e-stop switch will cut all power, as will the
ignition switch in the platform control box.
Batteries discharged Will receive 4-4 or 7-7 flash on GP400. Clean, service and
charge batteries.
Battery charger may not operate if battery voltage drops
below 20 volts.
Blown 30 amp fuse Located just below the battery cutoff switch
Circuit breaker tripped Located in lower control box panel
No functions; LED
illuminated or flashing
on GP400
Blown 300 amp fuse Located just to the left of lower control station.
Check for excessive motor amperage draw.
Will receive a 7-7 flash code on GP400.
Batteries discharged Will receive 4-4 or 7-7 flash on GP400. Clean, service and
charge batteries.
Battery charger may not operate if battery voltage drops
below 20 volts
Damaged upper control box harness Inspect from harness plug to terminal strip under platform.
May receive 6-6 flash code on GP-400 (CAN bus)
Other fault in system monitored
by GP400 Check Help message on EZ-Cal or check flash code for error
Functions from lower
controls but not from
upper controls
Interlock switch (joystick) Check power to red wire (power to switch) and power to
purple wire (power out of switch) at joystick plug
Loose plug connections on Matrix module Check plug connections
Damaged upper control box harness Inspect from harness plug to terminal strip under platform.
May receive 6-6 flash code on GP-400 (CAN bus)
System interlock Check HELP messages using EZ-Cal