Service bulletin AR840
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10115844 |
| Published by NHTSA | 2017-08-25 |
| Manufacturer's number | AR840 |
| Manufacturer's date | 2017-06-20 |
| NHTSA component | SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT |
NHTSA's summary
Complaint: Desiccant Dryer Filters failing within months of installation which potentially leads to failure of pressure transducer and Thomas Compressor. Cause-Tanks need to be drained daily instead of previous instruction of every oil change. Correction- Add 1200651 (pull-cord drain valve), 1401863 (drain tank label), and repalce 2002838 (desiccant filter). Affects units with Valid Air Suspension with Thomas Compressor without pull-cord drain valves.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Equipment and accessories, Suspension
| ARBOC SPIRIT OF MOBILITY | 2016, 2017 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| AR861 | 2018-09-17. Service bulletin. AR861-Upper Shock/Track Bar Mount Inspection and Repair. Complaint-Upper plates previously installed in AR839 are cracking and pulling away from frame. Cause-Insuffiecient/bad welds not holding under loads. Correction-Inspect/correct welds including drilling 1/8" stop holes into frame at the end of cracks and weld per procedure. Vehicles Affected-All Spirit of Mobility (SOM) units with Reyco Granning rear suspension where AR839 has already been completed. |
|---|---|
| AR844 | 2017-10-05. Service bulletin. AR844-Lower Shock Bracket Replacement-Complaint-Restricted shock compression with new upper shock mount location (AR839). Cause-New location of upper shock bracket completed in AR839 (if completed previously). Correction-Remove both existing lower shock brackets and replace. Affects all SOM units with Reyco Granning rear suspension. |
| AR842 | 2017-08-25. Service bulletin. Complaint: Desiccant Dryer Filters failing within months of installation which potentially leads to failure of pressure transducer and Thomas Compressor. Cause-Tanks need to be drained daily instead of previous instruction of every oil change. Correction- Add 1200651 (pull-cord drain valve), 1401863 (drain tank label), and repalce 2002838 (desiccant filter). Affects units with Valid Air Suspension with Thomas Compressor without pull-cord drain valves. This WO is the same document as AR840 but this customer needs their own document. There are no differences. |
| AR841 | 2017-08-25. Service bulletin. Complaint-Dedicated Micros Box Bracket cracking. Cause-Bracket 1309054 does not have enough material between slotted hole and exterior edge of part. Correction- Replace bracket 1309054 with revised bracket 1310546. Affects only Dallas DART buses. |
| AR839 | 2017-08-25. Service bulletin. AR839-Upper Shock/Track Bar Mount Replacement. Complaint-Cracking at upper shock and track bar mounts on chassis frame. Cause-Concentrated stress loads. Correction- Drill 1/8" stop holes into frame at the end of the cracks and weld provided retrofit bracket in affected areas. |
| AR833 | 2017-08-10. Service bulletin. Dallas DART-Speaker Mofification-Complaint-Rear speakers not functioning. Cause-Speakers wired to GM OEM connection. Correction-Re-wire into PA System. 27 Dallas DART buses affected, built in 2016 (2607, 2685-2691, 2695-2697, 2700-2703, 2710-2712, 2715-2723) |