Left-hand and right-hand are referenced from the point of view of the tractor operator.
The flat backside of the belt rides on flat idlers; the inside vee rides in v-idlers and pulleys.
This John Deere Sabre uses belt part number GX10062 which is 105-3/4" long x 1/2" wide, HA section, 0.31 thick, 32 deg., KEVLAR construction.
Models: SABRE 1438GS, 1438HS, 14.5/38, 15.538GS, 15.538HS, 1542GS, 1542HS, 15.542GS, 15.542HS, 1642HS, 1642V-Twin H, 1642V-Twin G, 1742GS and 1742HS; EUROPRO 1438GS, 1538HS, 1542GS, 1642H; Scotts S1742;
Overall view of the belt layout (#1).
Disconnect the drag link from the steering arm (#2, yellow) and loop one end of the belt around the steering shaft. Reconnect drag link.
Bring the loop around the engine pulley and front v-idler (#3).
Run the rear loop of the belt over the parking brake latch rod and clutch pedal shaft (#4).
This view (#5) shows the belt around the steering shaft, engine pulley and above the brake latch rod and the rear loop hanging loose.
Move the belt to the left-hand side and install the parking brake latch eyebolt (#6, blue).
Remove two screws and move the PTO interlock switch out of the way (#7, yellow). Unhook the spring from the PTO hook (#7, blue). Position the belt between the switch and PTO shaft.
Belt is between PTO switch and PTO shaft (#8).
#9 shows both ends of the PTO spring.
Run the rear loop inside the belt guides and around the transmission pulley (#10).
Set the parking brake and position the belt around the tensioning idlers (#11). The flat backside of the belt rides on the flat idler. The inside vee of the belt rides in the v-idler.
Install the belt guides on the idlers. Note how the tab on the guide bracket fits into a hole on the idler arm (#12, yellow).
Note how the v-idler guide locates in a slot on the frame bracket (#13, yellow).
Put the front v-idler in position and set the belt in the pulley. Add the idler pulley guide and tighten the assembly (#14). Ensure that the belt is within the guides shown at #14, yellow.
Install the PTO belt guide around the engine pulley (#15).
Make sure all parts are in place and tightened. Release the parking brake to put tension on the belt. The belt should touch only pulleys, not guides or any other part of the tractor. The pulleys should touch only the belt, not any other part of the tractor.
Diagram given on Deere illustrated parts list (#16). Engine pulley is seen at right; transmission pulley at left.
The blade belt is installed as shown (#17).
Side view of installed blade belt (#18).