Hydro-Gear
Lawn & Garden

Model # 640A22 Official Hydro-Gear hydro-gear assembly

Here are the diagrams and repair parts for Official Hydro-Gear 640A22 hydro-gear assembly, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 92 parts  |

Transfr Tube 1664R
#94

Cylinder assembly diagram

Transfr tube

Part #1664R

The manufacturer no longer makes this part, and there's no substitute part

Bracket 1662R
#89

Cylinder assembly diagram

Bracket

Part #1662R

The manufacturer no longer makes this part, and there's no substitute part

Spring 9342H
#99

Cylinder assembly diagram

Spring

Part #9342H

The manufacturer no longer makes this part, and there's no substitute part

Valve Assembly 1628R
#37

Hydro gear assembly diagram

Valve assembly

Part #1628R

The manufacturer no longer makes this part, and there's no substitute part

Check Valve 1613R
#18

Hydro gear assembly diagram

Check valve

Part #1613R

The manufacturer no longer makes this part, and there's no substitute part

Plug 1615R
#21

Hydro gear assembly diagram

Plug

Part #1615R

The manufacturer no longer makes this part, and there's no substitute part

Hex Screw 3238P
#2

Hydro gear assembly diagram

Hex screw

Part #3238P

The manufacturer no longer makes this part, and there's no substitute part

Retainer Ring 1644R
#56

Hydro gear assembly diagram

Retainer ring

Part #1644R

The manufacturer no longer makes this part, and there's no substitute part

Reservr Covr 9336H
#101

Cylinder assembly diagram

Reservr covr

Part #9336H

The manufacturer no longer makes this part, and there's no substitute part

Lip Seal 1653R
#72

Cylinder assembly diagram

Lip seal

Part #1653R

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your dryers

Choose a symptom to see related dryer repairs.

Main causes: door switch failure, lack of power, broken belt, blown thermal fuse, bad drive motor, control system failur…

Main causes: clogged exhaust system, heating system failure, deposits on moisture sensor, control system failure…

Main causes: damaged door strike, worn door catch…

Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, blown thermal fuse, bad door s…

Main causes: bad timer or electronic control board, door switch failure…

Main causes: bad gas valve coils, broken heating element, tripped safety thermostat or fuse, bad operating thermostat, c…

Main causes: bad drum support roller, damaged idler pulley, broken blower fan blade, worn drum glide bearing, bad drive …

Main causes: clogged exhaust vent, bad motor relay, loose dryer door catch, bad door switch, control system failure, fau…

Most common repair guides to help fix your dryers

These step-by-step repair guides will help you safely fix what’s broken on your dryer.

How to replace a flame sensor in a gas dryer

How to replace a flame sensor in a gas dryer

If your gas dryer won't heat, a broken flame sensor is one possible cause. This guide and video explain how to replace a…

Repair difficulty
Time required
 30 minutes or less
How to replace a thermal fuse in an electric dryer

How to replace a thermal fuse in an electric dryer

When the air in the dryer overheats—usually because the vent is clogged—the thermal fuse blows, stopping the dryer. You …

Repair difficulty
Time required
 15 minutes or less
How to replace a dryer door switch

How to replace a dryer door switch

The dryer won't start if the door switch isn't working correctly. You can install a replacement dryer door switch in les…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dryers

Use the advice and tips in these articles and videos to get the most out of your dryer.

How to use your clothes dryer efficiently

How to use your clothes dryer efficiently

Get expert tips on using your dryer efficiently to save energy.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…