teching DM21 User manual

•
•

3
R

Ｉ－Ｍａｋｅ·ＲｅａｌＭｏｄｅｌ·ＲｅａｌＷｏｒｌｄ

Precautions

Ｃｏｎｔｅｎｔｓ
1
2
Assembly instructions for two-wheeled steam train
P3
Parts list of steam train
P51
P3. Boiler assembly
P4. Water tank assembly
P6. Main body
P11. Chassis body
P24. Assembly of front bumper assembly
P25. Assembly of rear wheel shock absorber assembly
P26. Assembly of cab chassis
P28. Assembly of front wheel shock absorber assembly
P30. Assembly of front wheel shock absorber assembly and chassis body
P30. Assembly of cab chassis and chassis body
P31. Assembly of chassis body and main body
P40. Rail assembly (giveaway)
P45. Mechanical failure analysis and troubleshooting

1
Basic knowledge on standard
parts assembly
(1) Installation of screws
(2)Degree of screw tightening 2.Installation of snap ring
1.Installation of screws
(3)Screw installation order
Correct
orientation
Mount the screws diagonally
in order of number
Push in the
snap ring
in parallel.
Correct
orientation
Skew pushing
of circlip
Wrong
orientation
Wrong
orientation
１ ５ ３
４ ６ ２
Correct position Wrong position
TECHING
R

2
(1)Install the bearing into the bearing seat hole
3.Installation of Bearing
(2）Install the bearing onto the shaft
Correct orientation
Check the orifice of bearing block
for chamfer and burr; apply a little
lubricating oil onto side face of shaft
Installation point; align the bearing
and mount it to the final position;
pressure is applied to the outer race
of bearing.
Check the shaft end for chamfer and
burr; apply a little lubricating oil onto
side face of shaft Installation point;
align the bearing and mount it to the
final position; pressure is applied to
the inner race of bearing.
Wrong orientation
TECHING
R

3
Assembly of two-wheeled steam train
1.1Assembly of battery
1.Boiler assembly
１
095
Just tighten 095 to half the
full engagement depth
and then install 114
017
003
114
016
1.2 Assembly of circuit board
016
095
Plug the battery
plug in the
circuit board
Circuit board
identification diagram
Important note: before assembly, find
the bottled lubricating oil, be sure to
put enough oil in all the places that
need to be lubricated, otherwise the
machine is easy to get stuck
Position indicator
for lubricating oil
TECHING
R

4
2. Water tank assembly
2.1 Coal bin door cover assembly
2.2 Coal water tank closing plate assembly
105
087
034
77
099
029
102
087 Turn to the 12
o'clock direction
as indicated by the arrow.
087 Turn to the 9
o'clock direction is
closed as indicated by
the arrow.
TECHING
R

5
095
095
027
004
2.3 Assembly of flue rear cover and water tank 2.4 Assembly of boiler assembly and coal water tank
closing plate assembly
Note: The part shape
and direction of 004 is
as shown in the figure.
TECHING
R

6
095
037
3.1 Installation of small flue
3.Main body2.5 Assembly of water tank assembly
TECHING
R

7
002
095
030
095
3.2 Assembly of big flue 3.3 Assembly of flue middle cover
Pay attention to the
direction of the flange
TECHING
R

8
001
095
063
064
098
098
3.5 Installation of left and right flue brackets
3.4 Assembly of front flue
Pay attention to the
direction of the flange
TECHING
R

9
095
095
015
014
005
028
3.6 Assemble the driving cab
TECHING
R

10
031
032
088
105
102
100
077
107
3.7 Assembly of flue front cover assembly 3.8 Assembly of flue front cover plate assembly
Note: Installation
position of 088
TECHING
R

11
4.1 Assembly of ventilating valve assembly
006
054
044
4. Chassis body
044 must be screwed in
all the way to the end
Small hole end
Note: Part
arc direction
Please pay attention to
the directions of
067/069.
As shown in the figure,
these 2 sets have
different directions.
067
069
105
058
072
104
040
4.2 Reversing connecting rod assembly
TECHING
R
Lubricant(2 positions)
Lubricant(4
positions)