1
FormZ655
Date 7-01/F
Page 1 of 4
Printed In U.S.A.
SERVICE INSTRUCTIONS FOR
8000ES, 8005ES, & 8050ES
Hypot Testing
Each 8000ES series tool that is serviced must be Hypot tested before being shipped back to the customer. If
you do not have this equipment, you can not service this tool.
Hypot testing is a safety test required by Underwriter’s Laboratories. It basically ensures that there are no live
metal parts exposed on the product. This condition could occur if, for instance:
1. A housing screw went through a wire;
2. A wire was stripped back too far and the bare wire contacted a bearing;
3. A wire was damaged and came into contact with a bearing.
This is a very serious safety issue so please take care to test the tool as specified below.
The tool is to be Hypot tested at 3000VAC for 1 second between:
A. Both power cord prongs and the chuck with the power switch in the ON position.
B. Between the power cord prongs and each of the three rear housing screws with the power switch in the
ONposition.
Themaximumallowablecurrentis.5mA.
Wire Routing
It is extremely important when servicing the 8000ES series tools, that wires are routed properly. Page 3 of this
instruction illustrates proper wire routing. It is very easy to pinch a wire when reassembling a tool if care is not
given to wire routing. Take note of which ribs contact the switch and brushes and where wires must be routed to
clearthem.
Grease
• The 8000ES series drills should be greased only with Kluber Klubersynth® GE14-151 (Sioux part no. 1234)
grease.
Grease is available for purchase from Sioux Tools.
We recommend 30±2 grams of grease, equally divided between the first and second stage gear reductions.
Running the grease through the gears before reassembling the tool will prolong gear life.
Motor Installation
When installing the motor assembly, take note of how the field is held in the housing. It is easy to install the field
incorrectly if unfamiliar with the tool.
There are two small tabs in the left housing half, which retain the white plastic ends of the field. The most com-
mon assembly error is to force the field in place and break off these plastic ends. Never force the field. It should
slide in easily once lined up.
Always make sure that the armature turns freely before proceeding with re-assembly.
Torque Specifications
The following torque specifications are recommended for the 8000ES series drills:
