TRUCK SERVICE MANUAL
Injectors
PT type
Shop Manual
Table of Contents
OPERATITTG PRINCIPLES ............................................................................. 458
DISASSEMBLY.................................................................................................. 458
CLEANING AND REPAIR.................................................................................. 459
ASSEMBLY........................................................................................................ 462
LEAKAGE CHECKS .......................................................................................... 465
CUP SPRAY PATTERN CHECK....................................................................... 469
ST-790 TEST STAND INSTALLATION AND CALIBRATION ........................... 470
FLOW TESTING PT INJECTORS ON ST-790 ................................................. 477
ST-790 TROUBLE SHOOTING ......................................................................... 482
Injector Service Tools
Injector test stands (ST-790) are available in many
different voltages. When a test stand is installed, be
Tool
Injector Type or
certain the voltage being supplied matches the voltage
No.
Description
Engine Series
requirements on the name plate.
ST-668
Spray Angle Tester
All Injectors
ST-708
Orifice Burnishing Tool
PT (type B, C & D)
The following list represents the voltages available in ST-
ST-790
Test Stand
All Injectors
790 injector test stands.
ST-838
Test Stand Adapter
PT (type D) 5/16"
diameter series
ST-790-A
220 Volt, 3 Phase, 60 Cycle
ST-990
Leakage Detector
All Injectors
ST-790-F
230 Volt, 1 Phase, 60 Cycle
ST-095
Cup Wrench
PT (type D)
ST-790-G
115 Volt, 1 Phase, 60 Cycle
ST -1072
Crowfoot Cup Wrench PT (type D)
ST-790-J
220 Volt, 3 Phase, 50 Cycle
ST-1089
Plunger Extension
PT (type D)
ST-790-M
380 Volt, 3 Phase, 50 Cycle
ST-1090
Orifice Torque Wrench PT (type B, C & D)
ST-790-P
230 Volt, 1 Phase, 50 Cycle
ST-1129
Flowmeter Kit
All Injectors
ST-790-U
208 Volt, 3 Phase, 60 Cycle
ST-1145
Installation Torquing Tool All Injectors
ST-1210
Master Injector
PT (type D)
(132 cc flow)
ST-1058 Adapter
PT (type D)
ST-1298
Injector Assembly Stand
All Injectors
ST-1306
Master Injector
PT (type D)
(178 cc flow @ 80%)
ST-1332
Orifice Plug Gauge
PT (type B, C & D)
3375000
Ultrasonic Cleaner
All Injectors
3375048
Cup Wrench
7/8" 6 splined type
3375084
Injector Assembly Stand All Injectors
3375086
Testing Adapter Pot
PT (type D)
Spring Tester
457
