NHTSA ID Number: 10165641
Manufacturer Communication Number: ITS58751
TSB/Document Date: 2019-10-03
Summary
Technical Instruction to remove and replace the antenna pedestal mounting brackets.
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TSB/Document ID: ITS58751
Replacement Service Bulletin Number:
MFR Communication Date: 2019-09-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE
MFR Component System:
MFR Component Subsystem:
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INSTRUCTION TO SERVICE
ITS: 58751
SECTION:
600
Customer Options
WRITTEN BY:
Daniel Tice
SUBJECT:
R&R Antenna Pedestal Mounting Brackets
ITS58751
THIS ITS DOCUMENT SHOULD BE RETAINED AND REFERED TO FOR FUTURE MAINTENANCE UNTIL
THE NEW FLYER
PARTS AND/OR SERVICE MANUAL IS UPDATED TO REFLECT WORK DONE AS A
RESULT OF THIS DOCUMENT. ENSURE THAT THIS DOCUMENT IS AVAILABLE FOR PARTS AND
MAINTENANCE STAFF GOING FORWARD.
THIS DOCUMENT AND THE CONTENTS DISCUSSED HEREIN ARE THE CONFIDENTIAL AND
PROPRIETARY INFORMATION OF NEW FLYER INDUSTRIES CANADA ULC AND NEW FLYER OF AMERICA
INC. AND ARE DISCLOSED BY NEW FLYER IN CONFIDENCE. THIS DOCUMENT AND THE CONTENTS
HEREIN ARE NOT TO BE DISCLOSED BY THE INTENDED RECIPIENT WITHOUT THE PRIOR WRITTEN
AUTHORIZATION OF NEW FLYER. ANY UNAUTHOIZED DISCLOSURE, REPRODUCTION OR OTHER
DISTRIBUTION OF THIS DOCUMENT OR INFORMATION IS STRICTLY PROHIBITED AND MAY RESULT IN
ACTION BEING TAKEN AGAINST THE PARTY MAKING THE UNAUTHORIZED DISCLOSURE. THIS
DOCUMENT AND ALL COPIES HEREOF MUST BE RETURNED TO NEW FLYER UPON REQUEST.
PROCEDURE:
1. Turn the main battery disconnect switch to the “OFF” position.
2. On the roof of the bus, locate the street side antenna pedestal and remove and retaining hardware Items #1
Screws and #2 Washers on the two antenna plates on either end of the pedestal. See Figure 1
NOTE: Discard Items #1 Screws and #2 Washers.
3. The plates are sealed in place with Sika sealant so carefully cut the sealant between the plate and the antenna
pedestal and slide the antenna plate over to expose the inside of the end caps on the antenna pedestal.
Caution: Wear safety glasses and gloves while cutting and cleaning sealant between plates.
4. On both ends of the antenna pedestal remove and discard the existing mounting brackets and hardware.
See Figure 1.
Remove and discard
mounting hardware
and brackets.
Front of Bus
1,2
Remove
hardware on
these two
plates.
Figure 1: Antenna pedestal location
1
14S98012
Machine, Screw 8-32 x .75
2
10W98000
Washer, Flat #8
8
8
EA
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 2 of 7
5. Align Item #3 Antenna pedestal support bracket 1.38” up from the lower side screen bracket.
Attach loosely with Items #6 Bolt, #7 Washer, #8 Nut. Apply 1 or 2 drops of Loctite item #9 to the threads of
hardware where weld nuts are used as shown. See Figure 2.
NOTE: Install hardware Item #7 on front and rear of the mounting surfaces where weld nuts are not
used.
6. Attach Item #4 Antenna mounting bracket loosely with Items #6 Bolt, #7 Washer and #8 Nut. See Figure 2.
NOTE: Do not tighten hardware Items #6, #7, and #8 at this time.
View on the roof looking from middle of the bus towards the Street Side.
Side Screen Bracket
3
4
1.38”
6,7,8
6,7,9
Figure 2: New antenna pedestal mounting bracket locations
3
820169
Pedestal Support Bracket
4
817877
Bracket Antenna Mounting
1
1
EA
6
20B04012
Bolt, Hex SST ¼ - 20
4
EA
7
50W04000
Washer ¼”
6
EA
8
42N04000
Nut ¼ - 20
2
EA
9
081043
Loctite 243
0.010
EA
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 3 of 7
7. Align Item #3 Antenna pedestal support bracket 3.36” up from the bottom edge of the upper side screen bracket.
See Figure 3.
8. Tighten all mounting hardware in steps 5-6 and torque to 75 IN-LBS. See Figure 2.
9. Drill four 17/64” pass through holes for the remaining hardware in the locations identified using the existing
holes in the mounting brackets as a template. See Figure 3.
10. After drilling the pass through holes Install the remaining hardware Items #6 Bolt, #7 Washer, #8 Nut and torque
to 75 IN-LBS.
NOTE: Install hardware Item #7 on front and rear of mounting surfaces.
6,7,8
Drill 17/64 pass
through hole.
3
6,7,8
Align #3
Pedestal
bracket
3.36” up
from
bottom
of Side
Screen
Bracket
Drill 17/64” passthrough hole
from Back side.
Drill 17/64
passthrough
hole.
Side Screen Bracket
Figure 3: Antenna pedestal mounting bracket hole locations
3
820169
Pedestal Support Bracket
6
20B04012
Bolt, Hex SST ¼ - 20
1
4
EA
7
50W04000
Washer ¼”
8
EA
8
42N04000
Nut ¼ - 20
4
EA
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 4 of 7
11. Install Item #5 front mounting antenna bracket using items #6 Bolt, #7 Washer, #8 Nut and torque to 75 INLBS.
NOTE: Install hardware Item #7 on front and rear of mounting surfaces.
12. Install mounting hardware on front roof assembly stud to #5 front mounting antenna bracket with #7 Washer,
#8 Nut and apply 1 or 2 drops of Loctite item #9 to the threads as shown. See Figure 4.
Torque hardware to 75 IN-LBS.
6,7,8
5
Front roof assembly
7,8,9
Figure 4: Antenna pedestal front mounting bracket location
5
817955
Bracket, Front Mounting
6
20B04012
Bolt, Hex SST ¼ - 20
1
4
EA
7
50W04000
Washer ¼”
8
EA
8
42N04000
Nut ¼ - 20
4
EA
9
081043
Loctite 243
0.010
EA
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 5 of 7
13. On the top of the antenna pedestal, clean off all the old Sika sealant from the pedestal and plate where the
plates were removed in step 3. Be careful not to damage the paint. After the sealant has been removed, use a
lint free cloth dampened with #10 Sika Aktivator and wipe the bonding surfaces of the antenna pedestal and
the antenna plates. Allow to flash off for 5 mins. See Figure 5.
Caution: Wear safety glasses and gloves while cleaning sealant from pedestal and plates.
1, 2, 9, 10, 11,
13,14
Figure 5: Antenna plate mounting locations
14. Apply an even bead of Item #11 Sika sealer around the entire perimeter of the antenna mounting plates and on
the existing fasteners for the antenna mounting plates and fasten the plates back in place Using Items #1 Screw,
#2 Washer and apply 1 or 2 drops of Loctite item #9 to the threads as shown. See Figure 5.
15. Wipe off any access sealant that has squeezed out.
16. Remove all tools and debris and return the bus to service condition.
17. Turn the main battery disconnect switch to the “ON” position.
1
14S98012
Screw, 8-32 x .75
8
EA
2
10W98000
Washer, Flat #8
8
EA
9
081043
Loctite 243
0.010
EA
10
055702
AKTIVATOR-SIKA 205
0.01
EA
11
055701
SIKA 221 WHITE
0.01
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 6 of 7
LABOUR ESTIMATE
Operation
1
R&R Antenna Pedestal Mounting Brackets
Men
Hours
1
1.5
Labor Time
M X HR
1.5
PARTS REQUIRED
Description
Qty.
per
Coach
8
Units
8
EA
Item
Part Number
1
14S98012
Screw, 8-32 x .75
2
10W98000
Washer, Flat #8
3
820169
Pedestal Support Bracket
4
817877
Bracket Antenna Mounting
5
817955
Bracket, Front Mounting
6
20B04012
Bolt, Hex SST ¼ - 20
1
11
7
50W04000
Washer ¼”
21
EA
8
42N04000
Nut ¼ - 20
10
EA
9
081034
Loctite 243
0.01
EA
10
055702
AKTIVATOR-SIKA 205
0.01
EA
11
055701
SIKA 221 WHITE
0.01
EA
1
1
Notes
EA
EA
EA
EA
EA
_________________________________________________________________________________________________________________
ITS: 58751
Page 7 of 7
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