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STAT
IM
2000/2000S Service Guide
96-108639 Rev 3.0
7. Electrical and Electronic Components
STATIM 2000/2000S/2000 G4 Service Guide
Removing a Directly Wired Power Cord
To remove a power cord (1) wired directly to the power switch (2), proceed as follows (see Figure 20):
1. Turn the power switch OFF, and unplug the power cord.
2. Use a 7/8-inch wrench and a 15/16-inch wrench or two adjustable wrenches to undo the
bulkhead strain relief (3). Do not crush any wires between the inside of the chassis (4) and the
wrench. Retain the attaching nut (5) from inside the chassis.
3. Remove the white wire (6a) from the upper spade terminal, labelled1, and the black wire (6b)
from the upper spade terminal, labelled 2, on the power switch.
4. Remove the nuts (7) and washers (8) securing the ground wire ring terminal (9) to the ground
post (10) using an 11/32-inch wrench.
Several other ground wires are attached at this point. Note the sequence of washers, nuts and
ring terminals.
The line-in ground / earth wire should always be in immediate contact with the chassis and
secured with a separate washer and nut.
5. Remove the power cord from the unit.
Replacing a Directly Wired Power Cord
Use replacement cords with appropriate safety agency ratings and approvals only. The line-in
ground / earth wire should always be in immediate contact with the chassis and secured with a
separate washer and nut.
Do not attach the input leads from a power cord to any other leads or components in the unit.
To replace/reinstall a power cord, proceed as follows (see Figure 20):
1. Ensure the power switch is OFF, and the line cord is unplugged from the wall outlet.
2. Pass the end of the power cord with the spade terminals through the opening in the chassis (4)
and place the attaching nut (5) over the cord leads.
3. Thread the attaching nut to the bulkhead strain relief (3) but do not tighten. The length of cord
inside the chassis may require adjustment. A minimum of 5/8-inch / 16 mm of the external
cover of cord insulation should project into the unit when the stain relief is positioned correctly.
When the cord is adjusted, finger tighten the attaching nut, and then tighten one full turn using
a 7/8-inch wrench on the external part of the strain relief and a 15/16-inch wrench on the
attaching nut.
4. Attach the green ground / earth wire ring terminal (9) to the ground post (10). Note the order of
terminals, washers (8) and nuts (7) during disassembly. Use an 11/32-inch wrench to tighten
each nut securely.
5. Attach the terminal from the black wire (6b) of the power cord to the upper power switch
spade terminal labelled 2, nearest the pump.
6. Attach the terminal from the white wire (6a) of the line cord to the upper power switch spade
terminal labelled 1.
7. A dielectric strength test (Hi-Pot) and a protective bonding impedance test (ground continuity)
should be performed on the STAT
IM
unit at this stage.
NOTE: These tests must be performed on the STATIM again once the work is completed and
the cover has been returned to the unit.
8. Plug the line cord into the wall receptacle and turn the power switch ON. Observe the LCD
and indicator lights to determine that power is present.
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