Monthly

NOTE: Disconnect power to the washer-extractor at its source before performing the monthly maintenance procedures.

1.Each month OR after every 200 hours of operation, lubricate bearings. (Locate the bearing lubrication decal at the rear of the right side of the machine, as viewed from the front of the washer-extractor.)

The grease must have the following characteristics:

•NLGI Grade 2

•Lithium-based

•Water-insoluble

•Anti-rusting

•Anti-oxidizing

•Mechanically stable

The grease must have adequate base oil viscosity with one of the following ratings:

•ISO VG 150 (135 – 165 cSt at 40°C or 709 – 871 SUS at 100°F)

•ISO VG 220 (198 – 242 cSt at 40°C or 1047 – 1283 SUS at 100°F)

•An SAE 40 rating is also acceptable as long as the cSt or SUS values are within the specified ranges.

Pump the grease gun slowly, permitting only

2 strokes.

2.Use the following procedures to determine if V-belts require replacement or adjustment. Call a qualified service technician in either case.

a. Check V-belts for uneven wear and frayed edges.

b. After disconnecting power to the washer- extractor and removing all panels necessary for access to the drive belt, use one of the following methods to verify that V-belts are properly tensioned.

Maintenance

•Tension Gauge. Loosen motor mounting bolts and slide motor along motor plate to change belt span length. The belt tension on UW35 – UW125 models should be between 70 and 90 pounds (± 5 pounds). The belt tension on the UW150 should be between

130 and 150 pounds (± 5 pounds). (Set initial tension toward the high end of this range.) The UW150 uses a swing mount motor with an adjustable spring used for tensioning.

•Deflection. Refer to Figure 12. Loosen motor mounting bolts and slide motor along motor plate to change belt span length. Belt tension measurements should be taken as close to the center of the belt span as possible. For every inch of span length, the belt should deflect 1/64 inch (0.40 mm). Thus, a belt with span length of 50 inches should deflect 50/64 inch (19.84 mm). An initial (run-in) force of

5.25pounds should be used to set the belt tension. An operating (normal) force of

3.5pounds should be used after the washer- extractor has been operated for a few hours.

1

2

P044I

1Deflection

2Span Length

Figure 12

F232201

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