Toro 640 Installation Instructions Catalog

4.
5.
6.
With  the   valve  depressed,   grasp  snap  ring   "ears"  with  TORO   snap  ring   pliers
(Model No. 995-07), release snap ring from groove and remove from body.
Body
Remove  valve  mechanism  with  TORO Valve  Removal  Tool  (Model  No.  995-08)  or
carefully grasp one valve rib with snap ring pliers, pulling valve up and out of body.
Snap
Ring
Reassemble valve mechanism in reverse order.
Note:  Due to  limited  work space  in  640 sprinklers,  use of  Toro  Valve Insertion  Tool
(Model No. 995-35) is recommended to simplify valve and snap ring installation.
Valve
7.
See Reinstalling Nozzle/Drive Assembly.
Changing Nozzle and Stator
Note:  Nozzle  changes  may  be  accomplished  by
changing the entire nozzle assembly or by removing
the nozzle  container  end changing  only the  upper
nozzle.  In  either  case,   the  appropriate  matching
stator must be installed (i.e., No. 42 Nozzle and  No.
FIGURE 2
42
Stator, etc.) to ensure proper sprinkler operation.
Nozzle
Assembly
Changing Complete Nozzle Assembly
1.
2.
3.
Remove cap set screw  with 1/3 in. hex wrench and
unscrew cap.
Remove nozzle  container seal, nozzle  retainer and
nozzle/drive assembly from body.
Set Screw
Remove 1/16  in. allen  set  screw in  side of  nozzle
canister.
4.
5.
Unscrew nozzle assembly from drive assembly.
Assure  nozzle seal  is located  at  bottom of  nozzle
base threads.
6.
7.
Install  new  nozzle  assembly  —  HAND-TIGHTEN
ONLY, DO NOT OVER-TORQUE.
Drive
Assembly
Turn  set  screw  clockwise  until  contact  with  riser
threads is made (see CAUTION below).
CAUTION
Do not over-torque set screw. Over-tightening
will cause thread  damage and possible water
leak  between  lower   nozzle  base  and  drive
assembly.
8.
Remove boss on nozzle rubber cover to identify drive
assembly arc.
2
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 4 pages
Document TypeCatalog
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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