Old Thwaites 4000 oils.

[Mike_510]

Hi
I need to change oil fluids on my dumper, does anyone have a recommendation for the modern equivalents from this extract of the manual. Or anything particular lubricants to stay away from.
I’m looking at changing both axle’s, hydraulic and engine brakes have just been done with the right mineral oil.

 

[V8Druid]

Hi
I need to change oil fluids on my dumper, does anyone have a recommendation for the modern equivalents from this extract of the manual. Or anything particular lubricants to stay away from.
I’m looking at changing both axle’s, hydraulic and engine brakes have just been done with the right mineral oil.

what engine? you don't mention the gear or drop-box?

 

[Gecko]

Only going by the table provided, its an easy match.

Any brand name 10W/30 or 10W/40 mineral oil for the engine.
Grearbox, drop box, diff all want a plain HD90 gear oil - avoid the EP, EPX (hypoid) oils. You don't need the high-shear additives and they tend to be corrosive on plain metal bearings.
Brake and clutch - you could get away with a jack oil, but I'd use a brand name iso32 hydraulic oil (the prefix will vary with brand)
Mobilplex 47 is an EP grease with anti corrosion and water resistant additives (it's not wheel bearing grease). Excavator bucket pin grease is a good match (Castrol Spheerol SX2)
Mobil DTE Light is a light hydraulic oil with anti wear and anti-corrosion additives. A brand name ISO VG 32 will be perfect (and suit the brakes)

 

[Mike_510]

what engine? you don't mention the gear or drop-box?

Petter ph2 engine, think the gear box is newage, 3 forward and reverse, the front axle also houses the brakes and handbrake.

 

[Mike_510]

Only going by the table provided, its an easy match.

Any brand name 10W/30 or 10W/40 mineral oil for the engine.
Grearbox, drop box, diff all want a plain HD90 gear oil - avoid the EP, EPX (hypoid) oils. You don't need the high-shear additives and they tend to be corrosive on plain metal bearings.
Brake and clutch - you could get away with a jack oil, but I'd use a brand name iso32 hydraulic oil (the prefix will vary with brand)
Mobilplex 47 is an EP grease with anti corrosion and water resistant additives (it's not wheel bearing grease). Excavator bucket pin grease is a good match (Castrol Spheerol SX2)
Mobil DTE Light is a light hydraulic oil with anti wear and anti-corrosion additives. A brand name ISO VG 32 will be perfect (and suit the brakes)

Hi, great reply
Just to clarify the front axle houses the breaking system, and hd90 gear oil is still correct. Just some mentioned somewhere else that it’s a specific type of of oil.

 

[Gecko]

Hi, great reply
Just to clarify the front axle houses the breaking system, and hd90 gear oil is still correct. Just some mentioned somewhere else that it’s a specific type of of oil.

The wet brakes are the limitation. Low friction additives are good in many places, but not in the brakes.
In this case, "special" means "plain".