d. Column (4) National/NATO Stock Number. The NSN/NATO Stock Number of the tool or test
e. Column (5) Tool Number. The manufacturer's part number, model number, or type number.
B-5. EXPLANATION OF COLUMNS IN SECTION IV
a. Column (1) Reference Code. The code recorded in Column 6 of the MAC.
b. Column (2) Remarks. This column lists information pertinent to the maintenance function being
performed as indicated in the MAC.
B-6. JOHN DEERE FUNCTIONAL GROUP CODING
The MAC is arranged in accordance with the following John Deere functional group coding:
02 Axles and Suspension Systems
05 Engine Auxiliary Systems
08 Splitter Drive
16 Electrical System
17 Frame, Chassis or Supporting Structure
18 Operator's Station
43 Swing or Pivoting System