- 7 -
S
ERVICE
Assembly and disassembly should be performed by a
service technician who has been factory trained on MBW
equipment. The unit should be clean and free of debris.
Pressure washing before disassembly is recommended.
• Prior to assembly, wash all parts in a suitable cleaner or
solvent.
• Check moving parts for wear and failure. Refer to the
Replacement section in this manual for tolerance and
replacement cycles.
• All shafts and housings should be oiled prior to pressing
bearings. Also, ensure that the bearings are pressed
square and are seated properly.
• All bearings should be replaced when rebuilding any
exciter or gearbox.
• All gaskets and seals should be replaced after any
disassembly.
Torque Chart
Service Tools
General
The disassembly and assembly procedures given on the
next few pages are intended for a complete dismantling of
the rammer. Read the following sections carefully. It is not
necessary to follow the complete disassembly procedure
when only partial disassembly is required. If repairs have to
be made to the Lower Unit only, it is recommended that the
drive unit (engine, gearbox and handle) be removed from
the lower unit. Refer to Remove the three whiz lock screws
(#30) securing the adapter plate (#26) and motor (#22) to
the gearbox (#25)., page 7.
Handle Removal
Refer to Handle Assembly, page 18.
1.
Remove the air hose (#3) from the motor (#22, page
14).
2.
Remove the four whiz-lock screws (#11) securing the
handle (#7) to the shockmounts (#8).
Motor Removal
NOTE: It is not necessary to remove the handle to take
the motor off the rammer.
Refer to Gearbox Assembly, page 14.
1.
Remove the three whiz lock screws (#30) securing
the adapter plate (#26) and motor (#22) to the
gearbox (#25).
Pinion Removal
NOTE: The pinion will be removed from the gearbox
with the airammer motor.
Refer to Gearbox Assembly, page 14.
1.
Remove the the three socket screws (#31) to detach
the motor adapter plate (#26) from the motor (#22).
2.
Remove the pinion (#27) from the motor (#22) by
unscrewing it using the wrench flats on the pinion.
SIZE
GRADE 2
GRADE 5
GRADE 8
1/4-20
49 in
•
lbs
76 in
•
lbs
9 ft
•
lbs
1/4-28
56 in
•
lbs
87 in
•
lbs
10 ft
•
lbs
5/16-18
8 ft
•
lbs
13 ft
•
lbs
18 ft
•
lbs
5/16-24
9 ft
•
lbs
14 ft
•
lbs
20 ft
•
lbs
3/8-16
15 ft
•
lbs
23 ft
•
lbs
33 ft
•
lbs
3/8-24
17 ft
•
lbs
26 ft
•
lbs
37 ft
•
lbs
7/16-14
24 ft
•
lbs
37 ft
•
lbs
52 ft
•
lbs
7/16-20
27 ft
•
lbs
41 ft
•
lbs
58 ft
•
lbs
1/2-13
37 ft
•
lbs
57 ft
•
lbs
80 ft
•
lbs
1/2-20
41 ft
•
lbs
64 ft
•
lbs
90 ft
•
lbs
9/16-12
53 ft
•
lbs
82 ft
•
lbs
115 ft
•
lbs
5/8-11
73 ft
•
lbs
112 ft
•
lbs
159 ft
•
lbs
5/8-18
83 ft
•
lbs
112 ft
•
lbs
180 ft
•
lbs
3/4-16
144 ft
•
lbs
200 ft
•
lbs
315 ft
•
lbs
1-8
188 ft
•
lbs
483 ft
•
lbs
682 ft
•
lbs
1-14
210 ft
•
lbs
541 ft
•
lbs
764 ft
•
lbs
1-1/2-6
652 ft
•
lbs
1462 ft
•
lbs
2371 ft
•
lbs
M 6
3 ft
•
lbs
4 ft
•
lbs
7 ft
•
lbs
M 8
6 ft
•
lbs
10 ft
•
lbs
18 ft
•
lbs
M 10
10 ft
•
lbs
20 ft
•
lbs
30 ft
•
lbs
CONVERSIONS
in
•
lbs x 0.083 = ft
•
lbs
ft
•
lbs x 12 = in
•
lbs
ft
•
lbs x 0.1383 = kg
•
m
ft
•
lbs x 1.3558 = N
•
m
Part No.
Description
01629
Rubber Test Mat
20260
Springbox Tool
07205
Bellows Installation tool
07552
Blind Hole Bearing Puller Tool
Содержание AR56
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Страница 15: ... 12 This page intentionally left blank ...
Страница 17: ... 14 Gearbox Assembly ...
Страница 19: ... 16 Lower Unit Assembly ...
Страница 21: ... 18 Handle Assembly 1 2 3 4 4 5 6 7 8 9 9 10 11 11 12 13 13 14 ...
Страница 23: ... 20 Valve Assembly ...