32
Pressure Equivalents
Oil Change Record
"1"" Water Column" = 50 oz./sq. in. "11"" Water Column" = 6.35 oz./sq. in.
"11"" Water Column" = 4 lb./sq. in. 1 lb./sq. in. = "27.71"" Water Column"
1 lb./sq. in. = 14.73 lbs./sq.in "1"" Mercury" = .39 lb./sq. in
1 Std. Atmosphere = 14.73 lbs./sq. in.
Date Oil Changed Month/
Day/Year
Estimated Operating Hours
Since Last Oil Change
Landa VHG Operator’s Manual 8.913-952.0 - BR