Clutch B/E Measurement
Clutch B/E MeasurementMeasuring Installation Space, Clutch B (EB)
Tools Required:
DW260-090 Clutch B/E (installation space) Measuring Fixture
DW260-120 Clutch B Adjust Ring
DW260-130 Clutch E Adjust Ring
1. First of all, remove B clutch set, snap ring and C clutch set.
2. Install DW260-130, snap ring and DW260-120.
3. Put the dial gauge sensor on Clutch B Adjust Ring DW260-120.
4. Feed compressed air to Clutch E Adjust Ring DW260-130 via DW260-090 (C2 position).
5. Set the dial gauge on DW260-120's upper surface to zero.
6. Lift DW260-120 by hand until it touches the cup and read the measurement value.
7. Repeat measurement twice with the set turned by 120°.
8. Average measurement values M1, M2, M3. (measurement value is MB)
^ The minimum installation space EB is equal to the height of DW260-120 (RB) plus measurement value MB
^ CALCULATION
MB = (M1 + M2 + M3)/3
EB = RB + MB
^ EXAMPLE
M1 = 2.36 mm
M2 = 2.40 mm
M3 = 2.38 mm
So, MB = (2.36 + 2.40 + 2.38)/ 3 = 2.38 mm
After measuring the ring height of DW260-120, if the value (RB) is 11.99 mm,
EB = 11.99 + 2.38 = 14.37 mm
Measuring Installation Space, Clutch E (EE)
Tools Required:
DW260-090 Clutch B/E (snap ring play, installation space) Measuring Fixture
DW260-120 Clutch B Adjust Ring
DW260-130 Clutch E Adjust Ring
1. Install DW260-130, snap ring and DW260-120.
2. Put the dial gauge sensor on Clutch E Adjust Ring DW260-130.
3. Feed compressed air to Clutch B Adjust Ring DW260-120 via DW260-090 (C1 position).
4. Set the dial gauge on DW260-130's upper surface to zero.
5. Lift DW260-130 by hand until it touches the snap ring's bottom surface and read the measurement value.
6. Repeat measurement twice with the set turned by 120°.
7. Average measurement values M4, M5, M6. (measurement value is ME)
^ The minimum installation space EE is equals ring height of DW260-130 (RE) plus measurement value ME.
^ CALCULATION
ME = (M4 + M5 + M6)/ 3
EE = RE + ME
^ EXAMPLE
M4 = 2.4 mm
M5 = 2.35 mm
M6 = 2.34 mm
So, ME = (2.4 + 2.35 + 2.34)/ 3 = 2.36 mm
After measuring the ring height of DW260-130, if the value (RE) is 20.98 mm,
EE = 20.98 + 2.36 = 23.34 mm
Determining Adjusting Disc B (PB)
Tools Required:
DW260-100 Brake B/E Disc Thickness Measuring Fixture
1. Using disc thickness gauge, determine thickness MB for the disc set for clutch B (without the setting disc).
^ Turning the knob of DW260-100, make sure that surface height of A (upper side tool) is same with surface height of B (lower side tool).
^ Then measure the B disc set thickness.
2. Calculate the test dimension PB (PB = EB - MB)
EB = installation space
MB = B disc set thickness
^ EXAMPLE
EB = 14.37 mm
MB = 11.3 mm
PB = 3.07 mm
3. Find the Clutch B setting disc (clutch plate) thickness.
PB is 3.07 mm so, the setting disc (clutch plate of B set) thickness is 1.8 mm.
4. Replace clutch B's setting disc. (1.8 mm)
Determining Adjusting Disc E (PE)
Tools Required:
DW 260-100 Brake B/E Disc Thickness Measuring Fixture
1. Using disc thickness gauge, determine thickness ME for the disc set for clutch E (without the setting disc).
^ Measure the E disc set thickness.
2. Calculate the test dimension PE (PE = EE - ME)
EE = installation space
ME = E disc set thickness
^ EXAMPLE
EE = 23.34 mm
ME = 16.70 mm
PE = 6.64 mm
3. Find the clutch E setting disc (clutch plate) thickness.
PE is 6.64 mm so, the setting disc (clutch plate of E set) thickness is 5.0 mm.
4. Replace clutch E's setting disc. (5.0 mm)
