John Deere Roosa Master 9.5mm Injection Nozzles and DM Series Pump Technical Manual
Use extreme care to see that work benches, tools and test equipment are kept spotlessly clean to help ensure an acceptable level of service on the precision-fit fuel injection components.
Model: DM Series Pump
Type: Component Technical Manual
Publication: TM1109 & TM1214
Language: English
Format: PDF
“Stanadyne vs. aftermarket 9.5mm nozzles for John Deere.”
“Is the 9.5mm Roosa Master nozzle compatible with John Deere 4020?”
“Best diesel injection service for vintage John Deere pumps.”
“How to bleed air from a Roosa Master injection pump?”
“Symptoms of a clogged 9.5mm Roosa Master injection nozzle.”
“John Deere tractor won’t start after fuel pump rebuild.”
What is the correct torque for a Roosa Master nozzle nut?
The correct torque for a Roosa Master (Stanadyne) nozzle nut depends on the specific injector model:
Pencil Injectors: The nozzle (capsule) should be finger-tight on the body.
Hold-down Nut: The nut that secures the injector to the engine is typically torqued to 105 lb-in (approximately 8.75 ft-lb).
Injection Pump Drive Hub: For related service on the Roosa Master D series pump, the drive hub retaining screw requires 45 ft-lb.
- John Deere Roosa Master 9.5mm Injection Nozzles and DM Series Pump Technical Manual – 330 Pages & 204 Pages
SECTION 10 – GENERAL
Group 05 – System Components
Group 10—System Operation
Group 15—Service Reporting
SECTION 20 – INJECTION NOZZLES
Group 05—Diagnosing Malfunctions
Group 10 – Service
Group 15 – Specifications and Special Tools
SECTION 30 – OM-SERIES INJECTION PUMP
Group 05—Diagnosing Malfunctions
Group 10 – Service
Group 15 – Bench Test Procedure
Group 20—Specifications and Special Tools
SECTION 35 – D82 INJECTION PUMP
Group 05 – Specifications
John Deere Roosa Master 9.5mm Injection Nozzles and DM Series Pump Technical Manual
General Information
This technical manual provides service information for the following components (Fig. 1 ):
1 . Roosa Master OM-Series fuel injection pumps (A) and D82 fuel injection pumps (8) are used on various John Deere engines.
2. Roosa Master aneroid (C) for use on some DM injection pumps.
3. Roosa Master 9.5 mm fuel injection nozzles (D) used on various John Deere engines.
4. Roosa Master fuel filters (E) are discussed in the appropriate machine Operator’s Manual.
5. Roosa Master hand primer pump (F) used on various John Deere machines.
Component Service
All service work on these Roosa Master components should be performed in a clean, isolated working area; preferably in a separate, well-lighted area.
Use extreme care to see that work benches, tools and test equipment are kept spotlessly clean to help ensure an acceptable level of service on the precision-fit fuel injection components.
