# Service bulletin AR842

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: 10115846
- Published by NHTSA: 2017\-08\-25
- Manufacturer's number: AR842
- Manufacturer's date: 2017\-06\-28
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SUSPENSION; FUEL SYSTEM, GASOLINE

## 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. This WO is the same document as AR840 but this customer needs their own document. There are no differences.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10115846-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10115846-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Fuel system, Suspension

## Vehicles listed

- 2016 to 2017 ARBOC SPIRIT OF MOBILITY

## Other bulletins for the same vehicles and component

- [AR861](/bulletins/10144772.md), 2018-09-17, Service bulletin: SUSPENSION. 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](/bulletins/10118551.md), 2017-10-05, Service bulletin: SUSPENSION. 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.
- [AR841](/bulletins/10115845.md), 2017-08-25, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY. 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.
- [AR840](/bulletins/10115844.md), 2017-08-25, Service bulletin: SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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.
- [AR839](/bulletins/10115843.md), 2017-08-25, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION:REAR:SHOCK ABSORBER; STRUCTURE; SUSPENSION:FRONT:SHOCK ABSORBER. 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](/bulletins/10110858.md), 2017-08-10, Service bulletin: EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:WIRING. 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 \(2607, 2685\-2691, 2695\-2697, 2700\-2703, 2710\-2712, 2715\-2723\)

JSON: [/v1/bulletins/10115846](/v1/bulletins/10115846)

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