Manual 03108
3161 Air Pressure Fuel Limiter
Woodward
7
Disassembly
Remove the Governor from the prime mover.
This governor is a precision device and should be treated as such.
Set the governor upright on wooden blocks to protect the drive shaft.
Do not drop or set the governor on the drive shaft as this may cause
damage to the drive shaft, bearings, seals, and other parts inside the
governor.
Do not disassemble the device any further than necessary. All disassembly and
repair should be done by personnel experienced in repair and calibration of
precision controls. In all repair work, it is essential that tools, the work area, and
parts be kept clean.
Wear approved eye protection to prevent possible eye injury during
disassembly, cleaning, and assembly of parts.
Disassemble the device according to the following instructions. Reference
numbers in parentheses are assigned to each part in the exploded view (Figure
4-1).
1.
Remove three screws (1) from limiter cover(5). Carefully separate cover (5)
from bellofram spacer (25).
2.
Remove upper spring seat (6) and limiter spring (7). Lift off the bellofram
assembly and remove bellofram guide (8).
3.
Hold screw (23) with a 3/32 inch pin punch while removing 7/16 inch nut
(29) (Figure 3-1).
Figure 3-1. Disassembly of Bellofram Assembly
4.
Remove bellofram piston (28) and upper rolling bellofram (27).
5.
Remove screw (23), lower rolling bellofram (24), bellofram guide (25), and
spacer (26).
6.
It is not necessary to remove plug (2), O-ring (3), or screw (4) unless limiter
cover (5) has to be replaced.
