4.7.8 On 5-60 kW TQG's only: If a new style sealed switch is not installed, replace the
Master Start switch 100% with the new style sealed switch, Electroswitch part numbers
75902LV or 75901LJ, or American Solenoid part numbers DHR10 C57400 EF or
DHR10 C57410 EF. If a new style sealed switch is not installed and a new style sealed
switch is not available, replace the Master Start switch with an old style switch. (S1).
4.7.9 On 5-60 kW TQG's only: If a new style sealed switch is not installed, replace the
rotary VM-AM 100% with the new style sealed switch, Electroswitch part numbers
31907LW or 31904QT, or American Solenoid part numbers DHR10 C57430 EF (5-10
kW). If a new style sealed switch is not installed and a new style sealed switch is not
available, replace the rotary VM-AM switch with an old style switch. (S6).
4.7.10 On 5-60 kW TQG's only: Install a 10A fuse in-line with the convenience receptacle and a
new 10A receptacle data plate. The in-line fuse is not required if a Ground Fault Interrupter NSN
4.7.11 On 15, 30 & 60 kW TQG's only: with TRC voltage regulators, install fuse on exciter
4.7.12 On 5 & 10 KW Mil Std Voltage Regulator only: A1, clean dust/sand from circuit card.
4.7.13 On 30 & 60 kW TQG "B" Models only: replace the inline 30 amp battery-
4.7.14 On 5 & 10 kW TQG's, position wires between load terminal and main contactor
so that the wires are not rubbing on internal sheet metal parts. See Safety-of-Use-
4.7.15 On the 5 & 10 kW TQG's, if not already performed, rotate the slave receptacle so
that the positive terminal is on top. This ensures that the wrench does not short out on the
back terminal of the slave receptacle when disconnecting the battery terminal.
4.7.16 On the 3 kW TQG, Frequency Converters that have evidence of sand or dust shall
be minimally cleaned IAW the following procedure. The Frequency Converter is an
ESDS (Electrostatic Discharge Sensitive) device and shall be handled using all ESD
protective processes/procedures. Cleaning is not required on Frequency Converters that
have no evidence of sand or dust.
1. Inspect the unit for damage. In addition as the unit is disassembled, inspect for
damage and defective components. Damaged units must be repaired.
2. Remove both side covers and top plate.
3. Remove the bottom plate with fan.
4. Remove the bottom side rail then slide the metal shell up from the electronic
5. Remove the Control Circuit Board and Capacitor Circuit Board from the sides of
the electronic assembly.
6. Clean the circuit boards using isopropyl alcohol or other electronic cleaning
solvent (which does not attack the polyurethane conformal coating on the circuit
7. Clean the metal plates/covers.
8. Reassemble in reverse order.