Jackson 200LT, 200S, 200B Vacuum Breaker Repair Parts Kit, Service Procedures, Steps, Preparation

SECTION 5: SERVICE PROCEDURES

		VACUUM BREAKER REPAIR PARTS KIT
These dishmachines are equipped with vacuum	STEPS
breakers to serve as back-flow prevention devices. ASSE
requirements specify what type of back-flow prevention is nec-	1. Note: These instructions only apply to vacuum breakers
essary on dishmachines. Vacuum breakers, unlike air gaps,	(1/2” NPT and 3/4” NPT) as pictured below. The repair kits
have certain parts that have specific tolerances and design	indicated in these instructions will only work on those style of
aspects that must be met in order to function properly.	back-flow preventers. If you have a machine with a different
Jackson offers repair kits for replacing some of the	style of vacuum breaker, contact your Jackson representative
wear items associated with vacuum breakers which will allow	about replacement components.
you to save money in that replacement of these parts can take
place without removing the vacuum breaker from the plumb-
ing assembly.
The instructions provided here are for maintenance
personnel only. Unauthorized persons should not attempt any
of the steps contained in these instructions.
Warning: many of the instructions and steps
within this document require the use of tools. Only autho-
rized personnel should ever perform any maintenance
procedure on the dishmachine!
PREPARATION		Vacuum breaker

1.Power must be secured to the unit at the service breaker. Tag or lock out the service breaker to prevent acci- dental or unauthorized energizing of the machine.

2.Ensure that incoming water to the machine is secured either by use of a shut-off valve or disconnecting the incoming water line.

TOOLS REQUIRED

The following tools will be needed to perform this maintenance evolution:

1.Small flathead screwdriver

2.Needle nose pliers

TIME REQUIRED

It is estimated that it will take (1) person twenty min- utes to perform this task, not including all of the items indicat- ed in the section entitled “PREPARATION”.

IMPORTANT NOTES

1.Read these instructions thoroughly before attempting this maintenance evolution. Become familiar with the parts and what actions need to be taken. This will save time in the long run!

2.Note: Even though the photos in these instructions show a vacuum breaker that has been removed from the plumbing assembly, these maintenance steps could be performed with it installed so long as the requirements in the section entitled “PREPARATION” have been met.

3.Remove the top cap by gripping firmly and turning to the left. The cap should come off after a few turns.

Removing the cap

4.Set the cap to the side.

5.Using the needle nose pliers, gently lift out the plunger and set to the side. Examine the brass seating surface inside the vacuum breaker. The plunger is required to sit flat on this sur- face so it must be free of defects, imperfections and the like. If there is debris, remove it. If it is chipped or cracked then the vacuum breaker must be replaced. Failure to do so may result in the vacuum breaker not working according to its design and could result in damage to the dishmachine.

200 Series Technical Manual 7610-100-45-00 Rev. E (02/10/2006)

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