PDF Service Manual Hyundai 25B-7A 30B-7A 35B-7A Forklift - 866 KB
The complete service manual for Hyundai 25B-7A, 30B-7A, and 35B-7A forklifts is an essential tool for technicians.
It contains comprehensive information on maintenance, troubleshooting, and repair procedures.
With detailed diagrams and specifications, this manual helps ensure that all service work is performed to factory standards.
Keep your Hyundai forklift fleet in excellent condition.
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Foreword
Counterbalance battery forklift is a new series product researched and developed on the
basis of absorbing the advantages of the forklifts at home and abroad combining the
company’s introduction of advanced foreign technology to satisfy the demand of the market,
and it is particularly used for loading and unloading, handling and stacking at stations, ports,
freight yards, warehouses and in food, light textile industry, as well as general industrial
goods, etc.
Because a wide field hoisting system, fully hydraulic steering mechanism, automatic
boosting brake, new stepless speed regulator, open overhead guard and other advanced
components are used in the forklift, coupled with good quality motor, battery, MOSFET
electric control and a large screen LCD combination instrument, it has superior performance,
convenient operation, wide vision, flexible steering, reliable braking, good performance, low
noise, no pollution and nice appearance, etc.
This manual briefly introduces the technical parameters of our company’s
counterbalance battery forklift, the structure, working principle and operation, repair,
maintenance and other elements of main components. It can help operators reasonably use the
battery forklift, and make the battery forklift to give play to maximum effectiveness. We hope
that operators and equipment management personnel read carefully before operating the
forklift.
In use, relevant personnel should strictly abide by the provisions of the manual and the
matters needing attention, and make careful use of it so that your forklifts can be in the best
working state for a long term and give play to greater effectiveness.
Because parts and devices are involved in continuous improvement, relevant content of
this manual will also be changed, without prior notice, please users understand. This manual
is also used for the forklifts with assembly tools. Four-fulcrum battery forklift has passed the
CE certification.
Note: It is strictly prohibited that users privately modify the forklift without permission!
1
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1. 6207 bearing 18. Round nut 35. Plug screw
2. 6208 bearing 19. Brake hub 36. Differential mechanism assembly
3. Paper pad 20. Bearing 37. Intermediate box
4. Input shaft 21. Nut 38. Right bridge cover component
5. Left brake assembly 22. Bearing 39. Right support plate
6. Gear combination 23. Oil seal seat 40. Right brake zipper
7. Oil seal collar 24. Rotary shaft lip seal 41. Right brake assembly
8. Rotary shaft lip seal 25. Plug screw 42. Combined sealing washer
9. Bearing 26. Combined sealing washer 43. Vent plug
10. O sealing ring 27. Bolt 44. Ventilation plug
11. Nut 28. Sphere nut 45. Washer
12. Bearing 29. Washer 46. Bolt
13. Gear combination 30. Half-shaft paper pad 47. Washer
14. Left bridge box component 31. Half shaft 48. Bolt
15. Left brake zipper 32. Washer 49. Bearing
16. Washer 33. Bolt 50. O ring
17. Bolt 34. Paper pad
Figure 2-1 Gearbox (2.5-3.5T Zhongnan)
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(2) Parking brake
Parking brake device is assembled in the wheel brake, and is composed of pull rod and push rod.
Pull rod is installed on the side of primary brake shoe with pin, and the movement of the pull rod is
passed through the push rod to the secondary brake shoe.
Driven shoe
Pin
Pull rod Jack stay
Active shoe
Figure 2-13 Parking brake device
(3) Clearance auto-adjusting mechanism
Clearance auto-adjusting mechanism can enable to maintain the proper clearance between the
friction plate and drum brake.
Clearance auto-adjusting mechanism works only when driving in reverse.
Pulling rope
Guide slot
Spring
Pull rod
Adjusting mechanism
Figure 2-14
▲Action of clearance auto-adjusting mechanism
Operate the brake when the forklift backs away, and the secondary brake shoe and the primary
brake shoe contact and rotate together, so that the pull rod turns to the right around point A, as shown in
Figure 2-18, when the point B is raised; after the brake is released, the pull rod turns to the left under
the action of spring force, and the point B declines. When the clearance between the friction plate and
brake hub becomes large, the vertical distance where the point B turns is increased, a tooth of the
regulator is dialed, the adjustment lever becomes long (see Figure 2-15), and the clearance narrows
accordingly. The adjusting range of the clearance is shown in the following table:
21
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101 6
25 24
20 23 22 27 27 27
Key
COM
FU114 FU111 FU112
1 1 1
+12V
10A 10A
CAN-L
CAN-H
CAN-H
CAN-L
CAN-H
CAN-T
CAN-L
10A JC EB V
B-
Tractionreduction
SeatSW
handbrake
+12V
B-
+12V
4 26
6
40
41
8
9
6
6
29
20
21
23
24
30
5
50
51
51
50
35
52
52
51
51
50
7
7
22
10
15
14
16
12
11
11
19
17
18
18
13
23 2 18 6 1 17 16 21 20 1 4 5 16 17 18 10 2 3 9 13 19 6 11 19 6 12 21 20 1 4 5 10 2 3 9 11 13 18 17
CNA CNA CNA
+BTF 32 +BT +BTF 32 +BT
SUWEI DISPLAY 31
161、181、191
FU103
ACE2 350A 30 FU103
ACE2 400A 30
131
121
FU102 JC
Terminal 19 18 33
1 2 3 4 2 10A 1
Stall SA1
-B UM VM WM -B UM VM WM
2 0 OFF
CNA CNA
8 7 14 15 22 23 8 7 14 15 22 23
60
62
61
64
66