STEERINGSHAFT
Lubricate steering shaft at least once a season with light oil.
ENGINE
Refer to the engine section of Iris manual for all engine
maintenance instructions.
CLEANINGENGINEAND BLADEHOUSING
Any fuel or 011spilled on the machine should be wiped off promptly. Grass, leaves, and other dirt must not be left to accumulate around the cooling fins of the engine or on any part of the machine
Clean the underside of the blade housing after each mowing.
CUTTINGBLADES
A. Removal for Sharpening or Replacement
-
FIGURE 17.
Steering Gears
A | WARNING: Be sure to disconnect and | |
| ground | the spark plug wire and remove |
| ignition | key before working on the cutting |
VARIABLESPEEDPULLEY
Lubricate needle bearings inside the variable speed pulley with light oil once a season. Also lubricate the bearings inside the pulley by putting a small amount of light oil ort the shaft. Then start the tractor, and with the shift lever in neutral, move the speed selector for- ward and backward which will move the center sheave and distribute the oil on the shaft. Be careful not to get oil on the sheaves of the pulleys or on the belts. which could cause the belts to slip.
TRANSAXLE
The transaxle is lubricated at the factory and does not require che(:king. If disassembled for any reason, lubricate with 10 oz. of Shell grease, part number
The rear axles may be lubricated once a season, us- ing the access hole on each side of the transaxle hous- ing. See figure 16. A
WHEELS
The f, Jnt wheels are provided with grease fittings. The rear wheels must be removed from the axle for lubrica- tion. Lubricate both front and rear wheels at least once a season with automotive
PIVOT POINTS
Lubricate all pivot points with light oil at least once a
season.
MAINTENANCE
AWARNING: Disconnect the spark plug wire and ground against the engine before per- forming any repairs or maintenance.
TROUBLESHOOTING
Refer to page 24 of this manual for trouble shooting information.
blade to prevent accidental engine start- |
ing. Protect hands by using heavy gloves |
or a rag to grasp the cutting blades. |
1. Remove the large bolt and lock washer which holds |
the blade and adapter to the blade spindle. |
2. Remove the blade and adapter from the spindle. |
3. If the blade or blade adapter needs replacing. |
remove the two small bolts, lock washers and nuts |
which hold the blade to the adapter. |
B. Sharpening |
Remove the cutting blades by following the directions of the preceding section.
When sharpening the blades. follow the original angle of grind as a guide. It is extremely important that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. An unbalanced blade will cause excessive vibration when rotating at high speeds. may cause damage to the mower and could break, causing personal injury.
The blade can be tested for balance by balancing it on a round shaft screwdriver. Remove metal from the heavy side until it balances evenly
NOTE: It is recommended that the blade always be
r'emoved from the adapter for the best test of balance.
C. Reassembly
Before reassembling the blade and the blade adapter to the unit. lubricate the spindle and the inner surface of the blade adapter with light oil. Lubricating the bolt holes, bolts and inner surface of the nuts with light oil is also recommended. A 4 oz. plastic bottle of light oil lubricant is available. Order part number
When replacing blades, be sure to install the blade with the side of the blade marked "Bottom" (or with part number) facing the ground when the mower is in the
operating position.
15
