6 Maintenance
19
Read the instructions carefully. The items refer to the parts list and service kits section.
6.3 General Dismantling
Step 1
Inlet Collar Removal
Loosen and remove the Inlet Collar Cap Screws (pos. 13) and matching Split Lock Washers (pos. 14) from the top of the Inlet
Collar (pos. 1) using a 3/16” Hex Key. Remove the Inlet Collar Assembly (Drawing 5) from the top of the unit.
Caution: Hold or turn on Stem (pos. 15.1). DO NOT hold or turn on Tee Housing (pos. 24.1) or Nozzle
Carrier (pos. 33.1). Doing so will damage the gear train.
Step 2
Gear Train Removal
Pull the Gear Train Assembly (Drawing 6) up and out of the Stem (pos. 15.1).
Step 3
Nozzle Housing Assembly Removal
Remove the two Nameplate Screws (pos. 35) and Flat Lock Washers (pos. 5) from the front of the Nozzle Carrier (pos. 33.1)
using a 7/16” socket wrench.
Remove the Nameplate (pos. 34).
Pull the Nozzle Housing Assembly (Drawing 18) and the outer Labyrinth Bearing (pos. 25) from the nose of the Tee Housing
(pos. 24.1).
Gently remove the inner Labyrinth Bearing (pos. 25) from the nose of the Tee Housing.
Step 4
Body Assembly
Remove the Tee Housing Base Cap Screws (pos. 28) and matching Lock Washers (pos. 29) from the Tee Housing Base (pos.
30) using a ¼” Hex Key.
Remove the Tee Housing Base from the bottom of the Tee Housing (pos. 24.1).
Unscrew the Stem Base Cap Screws (pos. 28) and matching Lock Washers (pos. 29) from the Stem Base (pos. 27) using a ¼”
Hex Key. Hold the Stem (pos. 15.1) to prevent the unit from spinning while removing the screws.
Remove the Stem Base from the Tee Housing.
Pull up on the Tee Housing Assembly (Drawing 19) while holding the Stem Assembly (Drawing 7) down to separate the parts.
The upper Labyrinth Bearing (pos. 25) should come off the Stem along with the Tee Housing.