CHAPTER 5 DIRECT SUPPORT (INTERMEDIATE) MAINTENANCE INSTRUCTIONS

CHAPTER 5

DIRECT SUPPORT (INTERMEDIATE) MAINTENANCE INSTRUCTIONS

Section I. GENERAL

standards contained in Section V may be used at

5-1. Scope

periodic intervals to check the ability of the balanced

This chapter provides specific instructions for all

magnetic switch to perform its intended mission.

maintenance functions authorized direct support

maintenance personnel by the maintenance allocation

5-3. Periodic Checks and Services

chart (app B).

Included are maintenance,

There are no scheduled preventive maintenance

troubleshooting and repair instruction, and performance

procedures required for the balanced magnetic switch.

standards.

Since the J-SIIDS must be kept in continuous operation,

periodic testing of the balanced magnetic switch to

5-2. Purpose

check continued performance will be dictated by system

These maintenance instructions are primarily for use

test requirements.

following isolation of a J-SIIDS malfunction to the

balanced magnetic switch. However, the performance

Section II. TOOLS AND EQUIPMENT

5-4. Standard Tools and Equipment

5-5. Special Tools and Equipment

Table 2-1 lists standard tools and test equipment

No special tools and equipment are required for direct

required at direct support maintenance level.

support maintenance of the balanced magnetic switch.

Section III. TROUBLESHOOTING

Troubleshooting the balanced magnetic switch at direct

5-6. Visual Inspection

support level requires no special procedure. After

Before troubleshooting the balanced magnetic switch,

disconnecting system interconnecting wiring, check

make a thorough visual inspection.

Check wiring

circuit continuity using the volt/ohm meter listed in table

insulation and components for evidence of failure.

2-1 and the schematic diagram, figure 4-1. If continuity

Check housing interior for presence of moisture and

checks do not reveal a defective component, check

other foreign matter.

biasing magnet adjustment, paragraph 2-8.

5-7. Troubleshooting

Section IV. MAINTENANCE OF BALANCED MAGNETIC SWITCH

for correcting malfunctions detected during visual

5-8. Scope

inspection and checkout.

a. This section contains instructions for corrective

maintenance of the balanced magnetic switch. The

c. Repair of the balanced magnetic switch will be

extent of maintenance to be performed by direct support

performed either at the installation site or at the repair

personnel is governed by the maintenance allocation

facility.

On-site repair will normally consist of

chart (app B) and allocation of parts (app c).

replacement of defective components and should be

followed by adjustment, if applicable (para 2-8), and

b. The information in this section supplements that

performance testing in accordance with paragraph 512.

in section III (troubleshooting) and provides instructions

5-1