ARMATURE A. 1H2407 - Caterpillar

Assembly Procedure
Table 1
Required Tools    
Tool    Part Number    Description    Qty    
A     FT-1820     Fixture Assembly     1    
B     1P-1855     Retaining Ring Pliers     1    
C     6V-9072     Piston Seal Guide     1    
Illustration 1 g00496767
If the stem portion of valve assembly (14) was removed, assemble the stem portion on the valve with 9S-3265 Compound .
Lightly lubricate seal (11) with the lubricant that is being sealed. Put seal (11) on piston (12) and put piston (12) on valve assembly (14) .
Put washer (15) into position on the valve assembly and use Tool (B) in order to install snap ring (13) on the valve assembly.
Place housing (10) on Tool (A) and put Tool (C) in the bore of the housing. Lubricate Tool (C) with clean engine oil.
Push piston (12) into position with a smooth, swift motion. Remove Tool (C) from the housing. Place spring (17), retainer (18) and spring (20) in housing (10) .
Put O-ring seal (23) on extension (19). Put spring (22) and valve (16) into position on the extension.
Lubricate the bore of retainer (25) and O-ring seal (23) with clean engine oil. Install extension (19) in retainer (25). Install nut (2) on extension (19) .
Place tube (1) on the end of extension (19). Heat the tube to a temperature of 149°C (300°F).
Put diaphragm (21), washer (9) and spring (8) into position on retainer (25). Install retainer (25) in housing (10) .
Install stop (4) and nut (5) in cover (7). Hold retainer (25) in position and install cover (7) on housing (10). Install bolts (6) that hold the cover and tighten the bolts to a torque of 9 3 N m (7 2 lb ft).
Make a replacement for gasket (24) and install the gasket and cover (26) with bolts (3) .End By: Install the fuel ratio control. Refer to Disassembly and Assembly, "Fuel Ratio Control - Install".