MAINTENANCE
3-26 powermax1650 Service Manual
2
Heat Sink Component Replacement
Installation
• Install components to the heat sink as shown below.
• Use new thermal pads on temperature sensor.
• Use white thermal grease (Part no. 330002) on all components except for IGBT, PFC (Part no. 128745). Use
grey thermal grease (Part no. 128836) on IGBT, PFC, see Note 3. Apply a thin coat to the component, install with
screws, and tighten to required torque. Note: Remix grease if material seperates.
• Re-torque after 2 minutes. Repeat until torque is maintained. Clean excess grease from heat sink.
Notes:
1 Apply white thermal grease DC-340 (Part no. 027662) and torque to 8 in-lb (9 kg cm.)
2 Apply white thermal grease DC-340 (Part no. 027662) and torque to 35 in-lb (40 kg cm).
3 Apply grey thermal grease TC-330 (Part no. 128836) and torque to 35 in-lb (40 kg cm).
Note: grey thremal grease TC-330 is included with PFC IGBT Replacement Kit (Part no. 128745)
Thermal Pad
Thermal Grease
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