Service, Torque chart, Service tools – MBW R442 User Manual

Page 10: General, Handle removal, Engine removal, Ervice, Torque chart service tools general

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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 Assembly only, it is recommended
that the drive unit (engine, gearbox and handle) be removed
from the lower unit. See “Lower Unit Disassembly”.

Handle Removal

Refer to Handle Assembly, page 20.

1.

Turn the fuel valve (#10) to the "off" position.

2.

Loosen the hose clamp (#2) at the engine end of the
fuel line (#8). Disconnect the fuel line.

3.

Remove the flat head screws (#20) holding the
throttle (#15) to the handle (#16).

4.

Remove the four flange head cap screws (#23) and
flange nuts (#24) securing the handle to the torsion
mounts (#4).

5.

Lift the handle (#19) from the rammer.

Engine Removal

NOTE: It is not necessary to remove the handle to take

the engine off the machine.

Refer to Engine Assembly, page 22.

1.

Follow steps 1 through 3 under "Handle Removal".

2.

While supporting the engine, remove the four hex
flange nuts (#12) holding the engine (#11) and engine
adapter plate (#2) assembly to the studs (#1) in
gearbox.

3.

Remove the engine assembly from the rammer.

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

07205

Bellows Installation Tool

07552

Blind Hole Bearing Puller Tool

20194

Service Kit

20260

Spring box Tool

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