User's Manual

Maintenance
10 312753E
Nozzle Grip Assembly Removal
and Cleaning
The nozzle grip assembly must be removed, disassem-
bled and cleaned whenever disconnecting the chemical
hoses, replacing the internal o-rings, and/or changing
the injection nozzle and adjustment stem. It is advisable
to maintain a supply of spare nozzle grips, adjustment
stems, hex o-ring seats, locknuts, and the necessary
screws and o-rings.
Tools Required
• Nozzle ejector
• 5/32 in. hex key
• M3 hex key for M6 set screws
• 1 in. open-end wrench
• Torque wrench with M6 hex for M8 SHC screws
Nozzle Grip Removal
1. Bleed all chemical pressures to zero.
2. Remove one of the M8 socket head cap screws (13)
from the nozzle grip assembly and reinsert it at least
two full turns.
3. Unscrew the other three M8 screws (13) from the
nozzle grip. Try pulling and pushing the assembly in
and out of its bore to ensure that no pressure exists.
a. If it will not come out, turn the two M6 set
screws (14) contained in the nozzle grip clock-
wise to separate it.
b. If the nozzle grip assembly will not come out
with the set screws fully extended into the Mix-
Head body, replace the M6 set screws (14) with
longer M6 cap screws, and continue to move
the nozzle grip assembly out of the MixHead
body with the cap screws until the nozzle grip
assembly can be removed by hand.
See Parts List on page 25.
F
IG. 2:
2
3
4
5
6
9
13
14
18
17
Nozzle Grip Assembly for models
5/8, 6/10, 10/14 shown
Key:
FA Roll Pin (pressed into nozzle grip, not shown)
FB Slot for roll pin
FA
FB
See Additional Tools and Accessories on
page 29.
This screw is a safety stop for the nozzle grip
should any pressure be left in the system.
NOTICE
Whenever a chemical hose is disconnected, immedi-
ately remove its associated nozzle grip assembly and
flush all chemical from the assembly and the MixHead
bore. Exposure to atmospheric moisture will cause
the remaining chemical in the nozzle grip assembly to
harden, making removal from the MixHead difficult.