Maintenance continued, Carburetor, Spark Plugs

Maintenance (continued)

Carburetor

The carburetor is adjusted at the factory. It should not need resetting. If black exhaust is noted, check the air cleaner first. An over-rich fuel mixture is usually caused by a poorly serviced or clogged air cleaner element, not an improperly adjusted carburetor. If readjustment is necessary, refer to the engine manual or see your dealer.

Battery

The battery is maintenance-free and the acid level cannot be checked. Keep cables and terminals clean. If cables are corroded, clean them.

DANGER

Spark Plugs

Every 100 hours remove and inspect spark plugs. Do not service a plug which is in poor condition. Best results are obtained with a new plug. Under good operating conditions, the plug will have a light gray coating or a tan deposit. A white, blistered coating could indicate engine overheating. A black (carbon) coating could indicate an over-rich fuel mixture caused by a clogged air cleaner or improper carburetor adjustment. See engine manual for spark plug specifications.

NOTE: Do not clean spark plugs in machines which use abrasive grit. Clean spark plugs by scraping, wire brushing or washing with a commercial solvent.

Front Axle Adjustment

2.Adjust screws (N, Fig. 7-5). These screws apply pressure to the front axle. Axle should pivot with a small amount of drag.

Front Wheel Alignment

Straighten front wheels. Loosen locknuts (Q, Fig. 7-5). Adjust tie rod (Z) so measurement (O) is 1/8" longer than measurement (P).

Power Steering

Power steering is controlled by the hydraulic system. No adjustment is necessary.

BATTERIES PRODUCE EXPLOSIVE GASSES. KEEP OPEN FLAMES AND SPARKS AWAY. DO NOT SET TOOLS ACROSS TERMINALS.

BATTERY ELECTROLYTE CAN CAUSE SEVERE BURNS. EYE CONTACT CAN CAUSE BLINDNESS. ALWAYS WEAR EYE PROTECTION AND RUBBER GLOVES WHEN WORKING NEAR BATTERY. NEVER WEAR JEWELRY.

In time, a gap may form between the bolster and front axle. See Fig. 7-5. The following adjustment can reduce play in the axle. To make adjustment:

1.Set parking brake. Securely block rear wheels. Raise front of tractor with a hoist or jack. See page 23 for jacking instructions.

IF ELECTROLYTE CONTACTS SKIN OR EYES, RINSE IMMEDIATELY WITH WATER FOR AT LEAST 15 MINUTES. CALL PHYSICIAN IMMEDIATELY.

After cleaning battery, apply a light coat of petroleum jelly or grease to terminals and over the bolt stud.

Remove battery cables before removing battery. Remove negative (-) cable first, followed by the positive (+) cable. Always check the polarity of the battery terminals. Make sure the battery is not reversed. The negative (-) cable is the ground.