DOSATRON PJDI139 D14TMZ3000 14 GPM Injection Seal Kit Instructions

: June 9, 2024
: DOSATRON

Table of Contents

DOSATRON PJDI139 D14TMZ3000 14 GPM Injection Seal Kit
Kit Contents
Instructions
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DOSATRON PJDI139 D14TMZ3000 14 GPM Injection Seal Kit

Kit Contents

DOSATRON-PJDI139-D14TMZ3000-14-GPM-Injection-Seal-Kit-
FIG-1

We recommend cleaning all parts with warm soapy water and a toothbrush before installing the new parts. Water normally lubricates the parts, but you may use silicone on the o-ring to facilitate insertion. Check valve may be taken apart and cleaned in between maintenance to remove particles.

CAUTION: Parts may contain concentrated chemicals. The use of Proper Protective Equipment is recommended when performing maintenance.

Instructions

(Parts included in kit noted in blue)

Unscrew hose nut (PDI934). Unscrew injection stem assembly nut (PDI702) and pull down on stem to detach from body of unit.
Unscrew check valve nut (PDI734U) and pull out check valve assembly (PJDI140). It should come out in one piece. If not, be sure to remove the barb and check valve and discard.
Unscrew locking nut (PDI733), remove “C” clamp (PDI727) by slightly sprea- ding the opening and gently sliding it over the threads. Unscrew adjusting sleeve (PPDI036). Holding the sleeve (PDI904), push up on the threaded part of the white injection stem (PDI916) and slide it out of the sleeve from the top. Replace both sleeve and injection stem o-rings (JDI100 and JDI120).
Unscrew upper bell housing (PDI685), and remove the piston assembly (PCDI030). With the use of needle nose pliers, carefully grip the plunger by the thicker base and give ¼ of a turn counter clockwise. Discard and replace with the new plunger (PJDI138). Insert the piston assembly back into the lower body (PJDI113) and screw the upper bell housing (PDI685) back on.
Slide the injection stem (PDI916) down into the sleeve (PDI904), making sure the small key located on the bottom inside of the sleeve is properly aligned with the longest groove on the white stem. Holding the black sleeve, pull down on the white stem as far as it will go. Screw adjusting sleeve (PPDI036) back onto the sleeve (PDI904).Reinstall “C” clamp by sliding it gently over the thread at the bottom of the white stem. Rotate clamp until it clicks into place. Screw locking nut PDI733) back on.To remove o-ring easily without tools, squeeze it on either side to raise the seal, then slide it over the groove.
Insert new check valve (PJDI140) at the bottom of the white stem, making sure that the 4 white keys on the check valve seat next to the 4 keys on the bottom of the stem. Screw check valve nut (PDI734U) back on.
Push complete injection stem assembly in position at the bottom of the blue body, making sure desired scale is facing front of injector. Keys at the top of the black sleeve should slide into the slots at the bottom of the body. Slide injection sleeve nut (PDI702) up the sleeve and screw back on. Insert hose back onto the bottom of the check valve barb with compression fitting in (PJDI140). Screw hose nut (PDI934) back on.