- 11 -
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
Engine Shroud Removal
Refer to Gearbox Drivetrain Assembly, page 20.
1.
Disconnect wiring harness (#7) from engine by un-
screwing ring terminal from engine and unplugging
bullet connector.
2.
Remove automatic safety grid lifter from safety grid.
3.
Remove four bolts (#22), washers (#24), and lock-
nuts (#23) securing shroud to frame.
4.
Carefully lift shroud straight up to avoiding damaging
engine or drive components. Approximate weight is
100 pounds.
Engine Shroud Installation
Refer to Gearbox Drivetrain Assembly, page 20.
1.
Lift shroud over engine and drive components and
lower it straight down onto frame. Hold grid opener
out of the way while lowering.
2.
Align shroud with edges of frame and tighten bolts
(#22), washers (#24), and locknuts (#23) in place.
3.
Lift grid opener into position and pin to safety grid.
4.
Connect wiring harness (#7) to engine by grounding
the ring terminal to the engine and inserting the bullet
connector into the splice terminal.
Drum Removal
Refer to Drum Assembly, page 16.
1.
Remove engine shroud before attempting to remove
mixing drum.
2.
Disassemble connecting link on chain coupling and
remove chain.
3.
Mark the front and rear pillow block (#5) locations on
the frame to aid in the alignment during installation.
4.
Remove all four bolts (#25), washers (#28 & #10),
lockwashers (#27), and locknuts (#26) holding drum
pillow blocks to frame.
5.
If lifting drum by hoist, wrap chain around main shaft
and pass chain through paddles to stabilize. If lifting
drum by forklift, place blocks on forks to prevent drum
from rolling. Approximate weight is 400 pounds.
Drum Installation
Refer to Drum Assembly, page 16.
1.
Lower drum onto frame supports. Pillow blocks (#5)
should be snug to trunnions (#8) to eliminate
excessive endplay.
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
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