Report this forum post

There is no "motor" in that hydraulic accumulator. It only stores a limited amount of hydraulic oil pressure by compressing a spring in the accumulator when the truck engine runs the hydraulic pump. The hydraulic pump pressurizes the accumulator and the accumulator stores the energy until it is needed. The accumulator assists the brakes at times when there may not be enough hydraulic pump pressure available, like at idle when you are also operating some hydraulic cylinders. The accumulator only has enough energy stored to affect a few brake applications before being depleted.
Once depleted you have no power assisted brakes. The brake application then becomes a matter of how hard can you push on the brake pedal because at that time, the brake valve has switched over to being a master cylinder to provide back up for the brake system. There is no back up brake booster pump.
  • Posted 4 Apr 2014 14:32
  • Modified 5 Apr 2014 00:21 by poster
  • By L1ftmech
  • joined 25 Apr'12 - 394 messages
  • Tennessee, United States

This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.

Indicates mandatory field
Fact of the week
The dot-com bubble, a period of large and rapid investments in internet-based companies, peaked in 2000 and saw the Nasdaq Composite index rise by 579%. Then the bubble imploded. As the value of tech stocks plummeted, cash-strapped internet start-ups became worthless and collapsed.
Terberg YT222
Balling, Denmark
Used - Sale
SMV (Konecranes) 4531CC5
Balling, Denmark
Used - Sale
Latest job alerts …
Cleveland Ohio, United States
Columbia, SC, United States
Wentzville, MO, United States
Fact of the week
The dot-com bubble, a period of large and rapid investments in internet-based companies, peaked in 2000 and saw the Nasdaq Composite index rise by 579%. Then the bubble imploded. As the value of tech stocks plummeted, cash-strapped internet start-ups became worthless and collapsed.