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N342555909
Hitachi N342555909 Manuals
Manuals and User Guides for Hitachi N342555909. We have
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Hitachi N342555909 manual available for free PDF download: Installation Operation & Maintenance
Hitachi N342555909 Installation Operation & Maintenance (46 pages)
Track Relay 60 Hz, 115-Volt Local
Brand:
Hitachi
| Category:
Relays
| Size: 2.03 MB
Table of Contents
Table of Contents
5
Introduction
9
Shock Indicators
9
Description
9
General
9
Coils
9
Contacts
9
Specifications
10
Electrical
10
Mechanical
10
Table 1-1. Mechanical Specifications
10
Installation
11
General
11
Care in Handling
11
Mounting Base
11
Relay Indexing
11
Figure 2-1. Typical Plug-In Relay and Mounting Base
12
Receptacle Contact Springs
13
Old-Style Base Only
13
Improved One-Piece Base Only
13
Installing Wires in Receptacle Contact Springs
14
Figure 2-2 - Receptacle Contact Springs Installed
14
Table 2-1. Crimping Tools
14
Relay Insertion
15
Maintenance
17
Periodic Performance Test
17
Cleaning
17
Service Requirements
17
Calibration
17
Recommended Test Equipment
17
Shop Calibration Test Procedure
18
Figure 3-1. AC Vane Relay Test Circuit
20
Table 3-1. Shop Test Operating Values @ 70-74°F
20
Table 3-2. Operating Values at Ideal Phase Relations
20
In-Service and Field Calibration Test Procedure
21
Contact Resistance
23
Table 3-3. In-Service and Field Calibration Operating Values
23
Table 3-4. Contact Assignments
23
Table 3-5. Contact Resistance (Ohms)
23
Shop Maintenance
24
Cleaning and Inspection
24
Recommended Cleaning Materials
24
Contact Cleaning Procedure
25
Contacts that Are Severely Burned
25
Contacts with Heavy Tarnish, Slightly Rough or Pitted Surface
25
Contacts with Surface Film or Oxidation (Not Pitted)
25
Check-Out Procedure (Performance Test)
25
Repairs, Replacement and Adjustment of Relay Components
25
Recommended Tools and Test Equipment
26
Vane Removal
26
Vane Installation
27
Figure 3-2. Adjustment of Heel Spring Clips
28
Contact Block Replacement and Adjustment
29
Figure 3-3. Method of Closing in of Lower Heel
29
Figure 3-4. Application of Bending Tools
29
Contact and Counterweight Adjustment Procedure
30
Figure 3-5. Table Torque Arm
32
Test for Balanced Magnetic Circuit
34
Figure 3-6. Inspecting Loose Counterweights and Loose Trunnion Screw Locknuts
34
Parts List
37
PV-250 Track Relay (N342555-809 and N342555-909)
37
Table 4-1. Parts List for the PV-250 Track Relay, 60 Hz
37
Figure 4-1. PV-250 Relay Typical Top Assembly (N342555-809)
39
Contact Block Assemblies (N433482)
40
Figure 4-2. Contact Block Assemblies
40
Table 4-2. Contact Block Arrangement
40
Table 4-3. Contact Block Assembly Parts List
40
Relay Mounting Base Assembly (N438689-003 and N434647)
41
New Style Mounting Base (N438689-003)
41
Table 4-4. New Style Mounting Base Parts List
41
Figure 4-3. New Style Mounting Base Assembly (N438689-003)
42
Old Style Mounting Base (N434647)
43
Table 4-5. Old Style Mounting Base Parts List
43
Figure 4-4. Old Style Mounting Base Assembly (N434647)
44
Rail Team and Technical Support
45
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