For which hydraulic system? If you're talking about the power steering fluid, regular SAE DOT 30 Automatic Transmission Fluid will work just fine. If you're talking about an aftermarket add-on, such as a roll-off bed, grapple, compactor body, log lifter, rock shooter, or any of a wide range of available PTO driven components, those are aftermarket parts not manufactured by or endorsed necesarily by Volvo, and you need to see what the OEM (for the component) recommendation is.
The latch is at the bottom of the steering column.
Truck Paper website, Big Truck Trader website, Ebay Motors, Heavy Equipment Trader website.
You take it to a Volvo Dealer and they plug in a laptop and reprogram some parameters on the ECU in the truck.
Need to know what engine you have. While Volvo engines were pretty much exclusive for the market outside of North America, in 1999, Volvo trucks could be had with a Volvo, Detroit Diesel, Cummins, or Caterpillar engine in the North American market.
The 1999 Komatsu WB140-2 Backhoe typically requires around 10 to 15 gallons of hydraulic fluid to fill the system, including the hydraulic reservoir and lines. However, it's essential to consult the operator's manual for the exact specifications and to check the fluid level before adding more, as this can vary based on the machine's configuration and any modifications. Always use the recommended type of hydraulic fluid for optimal performance.
Should be on the low side of the lower radiator hose.
On my 1998 E320 the power steering fluid is supplied by the load leveling hydraulic fluid resivoir.
Left hand side of engine compartment between finder-well and firewall
I was a Merecedes mechanic. My 1998 E320 has an automatic load leveling fluid resivoir. This also suplies fluid to the power steering. I buy replacement hydraulic fluid from the dealer.
you don't volvo 850 transaxles do not have a filter for the transmissions they are AW50-42le trans axles the best you can do is a fluid flush
The book says the intire hydraulic system holds 36 gallons and the tank holds 28 gallons. This is from the manual of a 1998 555E I purchased.
All models until 1999 use Mercon/Dexron fluid. Available in any auto parts store