5
YarwaY
SERiES 400 intEgRAl StRAinERimpulSE
®
InstructIon, operatIon and maIntenance manual
sErVICINg
After disassembly clean internal parts with
a cloth and an on corrosive solvent. Heavy
deposits may be cleaned from orifice in top
of piston valve with a piece of fine wire or
toothpick.
BE CAREFul not to damage valve orifice, disc
edge or control cylinder bore (piston valve trap).
under no circumstances should crocus cloth or
tools be used to clean these parts.
inspect control cylinder bore, valve and seat
for wear (discand seat in disc type trap). Worn
parts cause inefficient or improper operation.
they should be replaced with a factory set
renewal kit.
CautION
The valve, seat and control cylinder of the renewal
kit are matched parts. They are not individually
interchangeable with similar parts from other
repair kits.
disc valve type
1. Remove bonnet and unscrew seat.
2. inspect and clean all parts. if satisfactory,
reassemble trap. if internals require
replacing, remove cap nut. then using
wrench and screw driver simultaneously
loosen adapter and locknut and unscrew
adapter. See page 6 for repair kit
installation and assembly.
parts lIst
Item
description
1
Body
2
Bonnet
3
Cap nut
4
Stud
5
nut
6*
Seat
7
Adapter
8*
Disc
10
locknut
12*
Cap gasket
13
Bonnet gasket
14
Seat gasket
15
Screen
steam trap
Figure number
renewal kit
part number
460 A
461 A
963559-01
460 B
461 B
963559-02
460 C
461 C
963559-03
* Renewal kit parts.
FiguRE 3
Disc valve type
FiguRE 4
FiguRE 5
Do not reuse any of the old parts when
installing a new renewal kit. Always use new
gaskets.
Repair kit of the disc type trap does not include
bonnet and seat gasket. these should be
ordered separately.
Clean the strainer screen with air or steam
blast or wash in solvent.
sparE parts, spECIal tOOls
to cover a one year service period, it is
recommended that spare parts be stocked as
follows:
A. One (1) repair kit for every four (4) integral
strainer traps installed of same internals.
(minimum number of kits -1) and sufficient
gaskets for trap inspection.
For the disc valve type trap, the use of a
spanner wrench (J. H. Williams #0-471A) is
recommended for seat removal and tightening.