EKKO EK13A Manuel utilisateur

The Specification

EK13A /EK15A-3 Wheel Electric Forklift

Note: Before using must read this manual and the various warning label!

EKKO Material Handling Equipment Manufacturing, Inc.

Contents

、

I. Introduction

1.1 Summary

“Battery van model designation method”.

1.2 Parameter

EK13A

This manual combines the whole EK13A &EA15A Series 3300lb three-wheel

electric forklift (hereinafter referred to as "forklift").

counterbalanced

Forklift models " EK13A & EK15A rated load 3300lb

, in line with JB / T8452 -1996

EK15A

Model EK13A

Load capacity Power

Operator type Seat

Load capacity (lb) 3000

Load center distance

(in)

Wheel base

(in)

Liing height

(in)

138

Lowered mast height

(in)

Mast/Fork carriage lt

forward/backward (°) 2/5

Overall length

(in)

105

Overall width

(in)

Fork size,

Thickness/Width/Length (in) 1.4/4/45.2

Fork adjust width

(in)

8.7-29

Turning radius

(in)

Max.gradient performance,

laden/unladen (%) 6/8

Li speed,laden/unladen (in/s) 4/5.5

Lowering speed,laden/unladen

(in/s)

5.3/4.7

Charger

24V/50

Driving Motor

AC 24V/2.0kw

Liing Motor

24V/2.5kw

Baery voltage

24V/350AH(Side

）

Service Weight (lb) 5200

II. Structure and working principle

2.1 Basic structure

The power source for forklift is battery. Forklift uses electric and hydraulic to control,

realizing walking, forks lifting and lowering, mast tilt forward and backward, steering

and other movements. The basic structure shown in FIG.

EK15A

Power

Seat

3300

177

79.6

2/5

106.6

1.4/4/45.2

8.7-29

6/8

4/5.5

5.3/4.7

24V/50

AC 24V/2.0kw

24V/2.5kw

24V/400AH(Side

）

5665

1.Steering wheel, 2.Combination Switch , 3.Key Switch , 4.Lifting handle

5.Tilting handle 6.Side shift handle 7.Emergency stop switch 8.Accelerator

2.2 Working principle

2.2.1 Walking system

The batteries provide energy to forklift for walking. With frequency conversion

system, it converts DC into AC, by controlling the AC motor drive on driving wheels.

AC motors through gear box convert the high-speed low torque into a low speed high

torque, and ultimately by the drive wheel to perform the action. Walking speed is

controlled by frequency control motor, there is an accelerator control.

Gear box is filled with enough gear box oil at the factory. Under normal

circumstances, the gear box oil is replaced every 1000 hours.

If there is abnormal sound in gear box during using, the user should immediately

stop the forklift to determine whether the bearing or gear is damaged. Continue to use

only after replacement.

2.2.2 Steering system

The steering of forklift is controlled by the steering wheel through the steering reduce

gear unit, led by a steering sensor sending a signal to steering motor. The steering

column for steering shaft tilts back and forth a certain angle. So that the driver can

adjust it to appropriate location, to meet different needs.

2.2.3 Braking system

The braking system for forklift is combined by brake system and parking brake.

Brake means braking the truck during operation, by using the foot brake.

When the brake cylinder sends the same force to the main brake shoe and vice brake

shoe to suppress brake drums until the top of vice brake shoe against the fixing pins,

the brake shoes move to the rotation direction of brake drum. After against fixing

pins, friction between brake drum and friction plate is increased. Since the main brake

shoe gives the vice brake shoe brake shoe a much larger pressure than the one for

brake cylinder, resulting in a lot of braking force.

Double shoes brake is mounted on both sides of the drive axle. Brake consists of two

groups of brake shoes, brake cylinder and regulator. One end of the brake shoe is in

contact with the fixed pin, and the other end is in contact with the adjusting means.

The return spring and compression spring rod suppress the parking brake lever unit. In

addition, the brake is also assembled the parking brake mechanism and automatic

adjustment device.

Brake

1. Left baseboard 2. Brake shoe 3. Brake cylinder 4.adjustable Spring

5.return spring 6. Hand brake adjusting mechanism 7.hand brake return spring

8.spring tab letting 9.pressure lever 10.tension spring 11.pull rod

stop block 12.Jaw dust cover

The parking brake is mainly used for parking state, to prevent accidents caused

by slip slope. Equipped with a limit switch on the parking brake, the control circuit is

closed under a parking state. The parking brake must be released before starting to

walk, only after that the control circuit can be switched on. The parking brake has

adjustable elastic function.

2.2.4 Operating system

The main working part of the forklift is forks. The forks realize the loading and

unloading, stacking and short-distance transportation for pallets or cargo.

Forks mounted on the carriage, by chain drive or inner mast moves up and down,

the carriage makes the goods off the ground or stacked on shelves. The chain

transmission and inner mast overall movement are achieved by the stretching of the

lift cylinder. Forklift operation process is achieved by stretching of the control

cylinders (including tilt action).

Cylinder movement is controlled by a manual valve stem, and the pressure oil is

provided by the pump station.

The safety valves in the circuit of lifting cylinders and tilt cylinder slow down

the speed of mast lifting and falling or tilting forward, which ensures the safety drop.

2.3 Electrical principle

2.3.1 Electrical system

Forklift electrical system includes walking and operation control, and lighting.

Forklift adopts America CURTIS1232 AC control assembly.

Instrument has the indicator for power display, slowing down of mast lifting, parking

and working time display function. when the battery power is too low, the power

meter will cut off the control circuit of pump motor. The forklift cannot raise but only

walk, which means the forklift should be charged immediately.

Oil pump motor is a DC motor with five-minute working system, so pump motor is

not suitable for long continuous operation. The vertical movements should have time

interval, should not be continuous, otherwise it causes the motor to heat, or even

burned.

Special Note: When the forklift is used for a long time, pump motor starter may have

fault. The performance is that the starter cannot pull back or cannot be disconnected.

The latter one is acted as no pulling the multi-way valve control lever, pump motor

will keep turning. The forklift should be stopped immediately, turn off the power

(unplug the battery plug-in), so that the pump motor stops, and timely replacement

starter.

The forklift is equipped with front headlights, rear lights, reversing horn and other

safety and lighting devices

The switch groups

2.4 Hydraulic principle

Pump motor driven gear pump provides hydraulic power; Two lifting cylinders are

responsible for the fork lift; a tilt cylinder is for the mast tilt movements. The oil-way

for Lift-lower and tilt is controlled by two handles on the double valve, the lifting and

lowering action is controlled by a single-acting oil-way on the passage double valve,

while tilt motion is controlled by a double-acting oil-way on the double valve passage.

The hydraulic system pressure for this forklift is adjusted only on double valve, which

has been debugged in the factory. If you’re not our after-sales employee or

professional repair staff, it is not allowed to adjust, in order to avoid accidents.

Hydraulic principle FIG.

Ce manuel convient aux modèles suivants

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