Multiquip BLW-400SSW Cleaning the Radiator, Fan Belt Tension, Operation in Freezing Weather

Table of Contents

BLW-400SSW — PRE-SETUP

CAUTION :

When adding coolant or antifreeze to the radiator, do not remove the radiator cap until the unit has completely cooled.

Day-to-day addition of coolant or antifreeze is done from the reserve tank. See Table 9 for engine, radiator and reserve tank coolant capacities. Make sure the coolant level in the reserve tank is always between the "H" and the "L" markings.

Table 9. Coolant Capacity

Engine and Radiator	1.1 Gal. (4.16L)
Reserve Tank	0.2 Gal. (0.75L)

Cleaning the Radiator

The radiator may overheat if the fins become overloaded with dust or debris. Periodically clean the radiator fins with compressed air.

Fan Belt Tension

A slack fan belt may contribute to overheating, or to insufficient charging of the battery. Inspect and adjust it in accordance with the Kubota Engine Operator's Manual.

The fan belt tension is proper if the fan belt (Figure 5) bends 7 to 9 mm (0.28- to 0.35 in.) when depressed with the thumb as shown in Figure 13 below.

Operation in Freezing Weather

When operating in freezing weather, be certain that the proper amount of antifreeze has been added. See Table 10 for antifreeze operating temperatures.

Table 10. Anti-Freeze Operating Temperatures

Vol %	Freezing Point		Boiling Point
Anti-Freeze	°C	°F	°C	°F
40	-24	-12	106	222
50	-37	-34	108	226

NOTE

When the antifreeze is mixed with water, the antifreeze mixing ratio must be less than 50%.

Figure 13. Fan Belt Tension

CAUTION :

Never place hands near the belts or fan while the welder/AC generator is running.

Air Cleaner

Periodic cleaning/replacement is necessary. Inspect it in accordance with the Kobota Engine Operator's Manual.

Battery

This unit is of negative ground. DO NOT connect in reverse. Always maintain battery fluid level between the specified marks. Battery life will be shortened, if the fluid level is not properly maintained. Add only distilled water when replenishment is necessary.

The battery is sufficiently charged if the specific gravity of the battery fluid is 1.28 (at 68° F). If the specific gravity should fall to 1.245 or lower, it indicates that the battery is dead and needs to be recharged or replaced.

Check to see whether the battery cables are loose. Poor contact may result in poor starting or malfunctions, always keep the terminals firmly tightened. Coating the terminals with a thin film of grease will help to inhibit corrosion.

BLW-400SSW-WELDER/AC GENERATOR— PARTS & OPERATION MANUAL— REV. #1 (06/15/01) — PAGE 29