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2. 

Locate  and  drill  a  7  mm  (0.25  in.)  access  hole
through the center of the control handle tube, ap-
proximately  50  mm  (2  in.)  below  the  existing  ac-
cess hole.

  WARNING 

Contents  are  under  pressure.  This  process  may
eject metal chips and oil.

3. 

Locate  the  gas  spring  inside  the  control  handle
through  the  newly  drilled  access  hole  and  drill  a
3 mm (0.125 in.) hole into the gas spring cylinder
shell to relieve pressure.

4. 

Clean up any discharged oil and dispose of in ac-
cordance with local regulations.

Troubleshooting

PROBLEM

POSSIBLE CAUSE

PROCEDURE OR ACTION

Steering is rough or difficult.

Damaged, worn, or defective steer-
ing handle swivel bearing(s).

Replace bearings.

Steering  handle  swivel  bearing(s)
need lubrication.

Lubricate or repack bearings.

Bearing  retaining  nut  torque  incor-
rect.

Loosen retaining nut and tighten to
correct  torque.  See  the  section

Master Drive Unit

 0630YRM1003.

Drive  unit  housing  bearing  (steer)
damaged.

Replace drive unit housing bearing
(steer).

Steering  handle  does  not  return  to
the vertical position.

Gas spring is weak or broken.

Replace gas spring.

Gas  spring  ball  stud  broken  or
loose.

Retighten  or  replace  gas  spring
ball stud.

Gas Spring

1600 YRM 1004

6

Содержание MSW025-E

Страница 1: ...Maintenance STEERING MECHANISM MSW020 025 E A895 MSW025 030 F B895 MPB040 E B827 MPW045 E B802 MPW050 E C802 PART NO 524154892 1600 YRM 1004...

Страница 2: ...dic Maintenance section Keep the unit clean and the working area clean and orderly Use the correct tools for the job Keep the tools clean and in good condition Always use YALE APPROVED parts when maki...

Страница 3: ...Precautions 1 Control Handle Head 2 Control Handle 2 Remove 2 Install 3 Gas Spring 5 Discharging the Gas Spring 5 Troubleshooting 6 This section is for the following models MSW020 025 E A895 MSW025 03...

Страница 4: ......

Страница 5: ...To avoid personal injury and prevent electrical shock perform the following steps before trouble shooting or adjusting and before connecting or disconnecting a handset or personal computer CAUTION To...

Страница 6: ...alled under tension and can release with enough force to cause personal injury or property damage WARNING The capacitor in the transistor controller can hold an electrical charge after the battery is...

Страница 7: ...Refer to Gas Spring 2 If previously removed install the bushings into the support bracket pivot pin holes NOTE Install the switch to the bracket with wire to bottom of the bracket 3 Install the contro...

Страница 8: ...Figure 3 Control Handle Assembly Control Handle 1600 YRM 1004 4...

Страница 9: ...au tions in this section DO NOT attempt to discharge the capacitors by shorting the controller WARNING The gas spring used on the control handle is in stalled under tension and can release with enough...

Страница 10: ...ions Troubleshooting PROBLEM POSSIBLE CAUSE PROCEDURE OR ACTION Steering is rough or difficult Damaged worn or defective steer ing handle swivel bearing s Replace bearings Steering handle swivel beari...

Страница 11: ......

Страница 12: ...1600 YRM 1004 10 15 3 08 10 06 9 05 8 05 7 05...

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