Onboard Air & Load Assist Airbags

Update with Onboard Air System

To avoid having to regularly have our rear bags pumped up at a service station and to allow some basic side to side levelling when parked overnight at uneven camp sites, we decided to fit an air storage tank and in cabin rear air bag inflation/deflation capability to our existing air bags.

Boss Air Suspension analogue dual gauge, fittings, valves, switches, solenoids and tank were used.

A Thor Air TC100 24V compressor is fitted to top up the tank on the road.

A Nitto style coupling is fitted to attach an air hose if desired to air up tyres

Original Load Assist Airbags install - 29 April 1997

In order to keep the rear of the bus level and balanced once loaded up for the road, we decided to fit a a set of independently adjustable airbags.
We decided on a Boss Air Suspension Toyota Coaster LA-87 load assist kit which is ready to simply bolt on the rear end of a Coaster.

Start Battery Isolation

A common theme amongst Coaster motorhomes owners is maintaining the level of the start batteries when they are not actively driven between trips unless they are kept on a mains charger or a unecesarily complex secondary solar charging system is added to top up the batteries. 

 After numerous failed attempts with smart battery isolators and MPPT solar chargers kept resulting in flat or failed start battery banks after a couple of weeks of not being started, a decision was mnade to just fit a battery cutoff switch. 

 A heavy duty Blueseas 6006 Single Circuit 300A ON-OFF switch was mounted and wired with 0 gauge cabling and Projecta heavy duty satin forged brass saddle clamps in the link between each battery.

As long as we remember to switch the bank off, there should be no more regular flat batteries.