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HIGHWAY EQUIPMENT COMPANY
46
97373-A
Page Rev. A
LUBRICANT & HYDRAULIC OIL SPECIFICATIONS
HYDRAULIC SYSTEM
Use premium quality lubricants with 100-200 SUS or 20-43 cSt viscosity at operating temperatures. The
hydraulic fluid’s specifications in the table below are for normal operating conditions. Extreme environments
or dirty conditions may require the use of different oils. Consult your New Leader dealer or the Product
Support Department at Highway Equipment Company for systems operating outside normal conditions.
Ideal Oil Operating Temperature 140 - 190° F
Recommended Premium Lubricant Automotive Engine Oil
Lubricant Specifications:
Viscosity Index Greater than 130
Viscosity at 40°C, cst Less than 115
Viscosity at 100°C, cst Greater than 14
Acceptable Fluid Example Valvoline All-Fleet Plus
SAE 15W-40
GEAR CASE LUBRICANT
Lubricate these assemblies with non-corrosive type SAE 90 E.P. (extreme pressure) gear oil conforming to
MIL-L2105 B multi-purpose gear lubricating oil requirements (API Service GL 4) with ambient temperatures
from 40° to 100° F. Ambient temperatures below 40° F. require SAE 80 E.P. lubricant; above 100° F. use
SAE 140 E.P. grade oil.
GREASE GUN LUBRICANT
Use a waterproof ball and roller bearing lithium base lubricant with a minimum melting point of 300° F.
This lubricant should have a viscosity which assures easy handling in the pressure gun at prevailing atmospheric
temperatures. The grease should conform to NLGI No. 2 consistency.
CHAIN OILER LUBRICANT
Use a mixture of 75% No. 1 or No. 2 diesel fuel or kerosene mixed with 25% SAE 10 engine oil.
The lubricant distributor and/or supplier is to be held responsible for results obtained
from their products. Procure lubricants from distributors and/or suppliers of
unquestionable integrity, supplying known and tested products. Do not jeopardize
your equipment with inferior lubricants. No specific brands of oil are recommended.
Use only products qualified under the following oil viscosity specifications and
classification recommended by reputable oil companies.
IMPORTANT!
Don’t lubricate the #5 belt. Use of lubricants will cause the belt to deteriorate and
fail prematurely.
IMPORTANT!