8. The discharge current is too large
or too small
9. Impure electrolyte solution
10. Local effect or electric leakage in
the internal short-circuit
4.6.4 ENGAGE IV instruments
4.6.4.1 Overview
The instrument ENGAGE IV is applied in combination with the Electronic control assembly, CURTIS series,
which is purposed to achieve the auxiliary control function and provide the driver with the visual interface of
vehicle running. This instrument can monitor the following parameters or states: battery power, working modes,
actual working mode (e.g.: move forward, backward, N-gear, parking brake, modes), the encoding status of
fault, alarm and the run time of vehicle. There are three working modes available for option. The switching
operation between modes is easy and visual. When the vehicle runs on a darker place, the backlight of
instrument will enable the driver to easily observe all parameters and status indication on the instruments.
4.6.4.2 Display
4.6.4.3 Function and application:
(a) Applicable to the counterweight electric forklift and forward electric forklift and other materials handling
vehicles: it can display in digitals the fault signals output by the walking controller and pump controller,
The "TRAVEL" represents the walking controller. If the instrument is used for the single drive forklift, the
"HYD" represents the pump controller;
(b) Display of electric quantity and alarm of insufficient electricity: when the electricity is insufficient, the
lifting lockup function can be available;
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General