66A5400H01
10
b.
For special conditions such as frequent levering in operations, contaminated environments, and
high temperature/humidity conditions, the inspection frequency should be a minimum of twice
per year.
3.
Fault interruptions have the greatest impact on the MiniMod. MiniMod that have been subjected to 15
full rated fault interruptions should be immediately inspected and the schedule for inspection and
maintenance should be re-evaluated based upon the inspection results. Additionally, because of the
variability of system fault characteristics, if there are any customer uncertainties in the records of the
magnitude, duration, or other fault details, increased inspection frequency should be considered.
4.
The unit should be visually examined to make sure there is no cracking of the insulation parts and
damage done to the internal components.
5.
Create and maintain a dated permanent record of all inspections, maintenance performed, actions taken,
observations made, and measurements taken. Not only will this provide valuable historical information, it
can help to establish whether or not the present schedule needs to be adjusted.
6.
Perform ongoing visual inspections, when possible, of all equipment on a regular basis. Be alert for an
accumulation of dirt in and around the primary contacts, loose hardware and or discolored insulation.
For assistance in establishing or updating a detailed Inspection and Maintenance schedule for a specific
application, please contact your local Eaton representative.
General Torque Guidelines:
Bolts and screws must be properly torqued. This is especially true if part and/or accessories are added or
replaced. The table below provides guidelines on torque levels. The table is intended as a general guideline
and should be applied in conjunction with the experience and good judgment of the individual performing
the work.
Bolt Size
Torque (LB-IN)
8 - 32
24
10 - 32
36
1/4 - 20
72
5/16 - 18
144 (12 lb-ft)
3/8 - 16
300 (25 lb-ft)
1/2 - 13
540 (45 lb-ft)
Summary of Contents for 4000A MiniMod
Page 4: ...66A5400H01 4 Figure 1 View of the 4000A MiniMod with part descriptions ...
Page 5: ...66A5400H01 5 Figure 2 Outline drawing with reference dimensions ...
Page 6: ...66A5400H01 6 Figure 3 and 4 View of the breaker in the text and connected positions ...
Page 8: ...66A5400H01 8 Figure 7 View inside the MiniMod ...
