Service manual

TABLES

The greatest source of service calls for conveyor accounts come from incorrect table application. Not all

table types are suitable for conveyors. An existing conveyor may have improper tables. The conveyor

has no doors and must operate with either side open. Tables are needed to control water ﬂ ow. Water loss

problems are due to improper tables and the placement of sinks and drains.

1. It is recommended that sinks and drains be a minimum of 20” from the edge of the table lip. No drains

in clean table. If a drain is closer than 20” it must be removed or a new table installed. These close-sink

tables are for door-type equipment and harm the operation of conveyors. This is best considered

before the installation during an account survey.

2. The tables must slant toward the machine so water can return to the tanks. Otherwise, the water will

be lost and the machine’s design for self-scrapping will be canceled out. This will also cause the auto-ﬁ ll to

activate repeatedly, thus increasing water and chemical usage and robbing ﬁ nal rinse pressure.

The economical answer: tables are made to serve the machine, not the reverse.

3. When the tables are ﬁ nally put in place, ANCHOR the table to the dishmachine using the 1/4” -20 SS

hex bolts supplied in the machine package. There is a diagram for the position of the bolts along with two

new drill bits. This is important, if you anchor the tables you will eliminate many service problems.

4. The table lip should not extend down into the machine far enough to rub on the conveyor bar. If this

should happen cut a half-round in the table lip above the conveyor bar for clearance and fasten down the

table securely on the machine. There should be no space between the table and the machine’s lip.

Reason: If the elevation of the table were raised above the level of the tank lip, then the geometry of the

conveyor dogs, switches, and racks will be changed. To compensate for a raised table several items must

be altered and adjusted. This will create a major problem for the machine’s control and conveyor systems.

It is recommended that the tables be attached to the machine according to these instructions.

TABLE LAYOUT

A 90° exit or a “horse shoe” layout are popular ideas because of the space saved but they cause

operational problems. Even with the safety clutch, the difﬁ culty of a short table or 90° causes constant

jams. In most cases the ADS table limit switch is a better solution for shutting down machine operation

when racks load up on the table. Curve or “bands” installed on the clean table are a common sight, their

purpose is to take square racks around the corner. Few accomplish this goal — moving racks around a

corner is extremely difﬁ cult. The usual experience is after reaching ¾ of the arch, the rack sits diagonal

and blocks the following rack. It must be pulled out to continue. This layout reduces a conveyor’s output

to nearly that of a corner machine.

RULE: The Installation is KEY to reduced service problems.