Model 9600/9700 Swing-Reach ® Lift Truck Section 7.Component Procedures

Electrical Components Motors

2.Check brush spring tension. Refer to “Motor Brush Spring Tension” .

3.Clean brushes and holders. Wipe the commutator with a dry, lint-free cloth. Do not use lubricants of any kind on or around the commutator.

4.Check brush holders for a solid connection to the mounting support. Tighten the mounting screws as necessary.

5.Check the cap screws that hold the brush cross-connectors to the brush holder body.

6.Make sure the motor terminals are secured tightly to the motor frame. Use care not to strip the threads or crush the insulating parts. See “Power Cable Terminals” on page7-52.

7.Check all the cap screws around the frame for tightness.

8.Keep the outside frame of the motor clean and free from dirt. Maintain a free air passage around the motor to permit heat radiation.

Replacement

NOTE: If one brush needs replacement, always replace the entire set of brushes.

Use only genuine Raymond brushes. Using another type of brush could cause damage to the commutator or cause excessive brush wear and will void your warranty.

If the end of the brush is not already contoured to fit the commutator, seat the brush to the commutator:

NOTE: If the motor commutator is not accessible, form the brush contour using a brush seating stone.

1.Move the motor brush springs out of your way.

2.Wrap a piece of 00 sandpaper around the commutator. Do not use emery cloth to seat brushes.

3.Move the brushes back down into their holders. Rotate the armature until the face of the brushes are contoured to match the curve of the commutator.

Publication: 1089040, Issued: 08 Apr 2016

4.Remove the sandpaper.

5.Blow any dust out of the motor with clean, compressed air at a maximum of 30 psi (207 kPa).

Motor Brush Spring Tension Inspection

1.Turn the key switch OFF and disconnect the battery connector.

2.Remove the operator compartment covers.

3.Slide the brush up slightly in its holder.

4.Insert a paper strip between the brush face and the commutator. See Figure7-67

5.Place a small leather loop around the coil spring for the brush. If the brush spring has a loop at the brush, hook the spring scale directly to the spring.

6.Attach a 5 lb. (2.27 kilogram) spring scale to the leather loop.