EATON
WSB11206 WCSB Tensioner / Brake with ORB Coolant Ports Installation, Operation and Maintenance Manual E-CLCL-II009-E
August 2015
18
WCSB tensioner / brake with ORB coolant ports
Table 8
Wear Limits for WCSB Components - inches (mm)
Item
Component
Description
Wear Limit/Remarks
Original Sizes/Remarks
3
Wear Plate
Friction Wear
Brake Size:
Maximum Wear:
Wear will be in the form of even wear or
Signature
24WCSB
0.045 (1,14)
circular grooves in the copper surface.
36WCSB
0.050
(1,27)
48WCSB
0.060
(1,52)
8
Friction Disc
Friction Material
Fully worn at the bottom of the dust
Brakes have adjustment provision.
groove or wear notch on the 48WCSB.
See Section 4.2
9
Friction Disc
Gear Backlash
Maximum total backlash is 0.060 (1.5).
If step is worn in gear, gear must be
28
Core & Gear,
replaced.
119 and
Disc
12
Clamp Tube
Reaction Area
Maximum wear is 0.015 (0.38).
Wear will be in the form of notch or step
on the side of tube.
Reaction Holes
Wear will be in the form of elongation of
Original Reaction Hole and Bushing Sizes:
31
Reaction Plate
the holes.
Brake Size:
Bore Size:
14
Pressure Plate
Maximum wear is 0.031 (0.80).
24WCSB
1.668 (42,88)
117a
End Plate
36WCSB
2.065 (52,45)
48WCSB 2.375
(60,33)
19
Cylinder
Seal Area
Maximum wear is 0.005 (0.13).
Wear will be in form of grooves where
the seals contact the cylinder wall.
22
Spring
Spring Free Height
Springs must be replaced in complete sets.
WCSB Brake Size:
Minimum Free Height:
WCSB Brake Size:
Original Free Height:
24
4.90 (124,46)
24
5.18 (131,57)
36
6.37 (161,8)
36
6.65 (168,91)
48
8.75 (222,25)
48
9.00 (228,6)
34
Spring
Spring Free Height
WCSB Brake Size:
Minimum Free Height:
WCSB Brake Size:
Original Free Height:
24
3.88 (98,55)
24
4.00 (101,6)
36
3.88 (98,55)
36
4.00 (101,6)
48
4.85 (123,19)
48
5.00 (127,6)
52
Spring
Spring Free Height
WCSB Brake Size:
Minimum Free Height:
WCSB Brake Size:
Original Free Height:
24
4.95 (125,73)
24
4.00 (101,6)
36
6.5 (165,1)
36
4.00 (101,6)
119
Friction Disc
Friction Material
Maximum wear is 0.045 (1,12) per surface.
WCSB Brake Size:
Original Thickness:
(0.09 (2,24)Total)
24
1.00 (25,4)
36
1.25
(31,7)
48
1.25
(31,7)
4.2.1.2 Measure for WCSB tensioner / brake assembly wear:
(a)
Ensure that the load that the WCSB tensioner / brake
assembly supports will be properly secured from
possibility of movement when no pressure is being
applied to the brake(s) being inspected.
(b)
Exhaust all air pressure from the pressure chambers
on both ends of the WCSB tensioner / brake
assembly being evaluated. Pressurized areas
are located in the Cylinder (19) and Mounting
Flange (112).
If more than one WCSB tensioner / brake assembly
is used in the driveline, exhaust all air pressure from
those brakes also.
Note: Follow the recommendations of the control system
manufacturer to ensure that no air pressure is trapped in the
brake or control system, and that the control system has been
safely isolated from the WCSB tensioner / brake assembly while
performing inspections.
(c)
Verify that the air pressure has been fully exhausted
from these chambers by checking any in-line
gauges (they should read zero pressure), and also
by inspecting specific gaps between components
as noted below. Refer to Figures 6 and 6A for the
corresponding gap locations.
Pressure in the cylinder (19) has been exhausted if
the measured gap Z is greater than zero, and there is
no clearance between each side of the disc (119) and
the corresponding friction material.
Pressure in the mounting flange (112) has been
exhausted if gap Z-2, located between the mounting
flange and the pressure plate (116) is closed and
gap W is greater than zero.
Содержание Airflex WSB11206
Страница 1: ......
