312F and 313F Excavator Machine System Specifications Main Hydraulic Pump Caterpillar


Main Hydraulic Pump
`


Illustration 1g06016754

Table 1
Specification for 434-2102 Main Hydraulic Pump Gp 
Item  Qty  Part  Specification Description 
Lubricate the sliding surfaces of the main hydraulic pump lightly, with clean hydraulic oil. 
13  094-1882 Plug  Before assembly, apply blue Loctite 5188 to the threads. 
Torque to 13 ± 2 N·m (115 ± 18 lb in).
3J-1907 O-Ring Seal  Before assembly, lubricate the bores lightly with the lubricant that is being sealed. 
199-0518 O-Ring Seal  Before assembly, lubricate the bores lightly with the lubricant that is being sealed. 
189-9763 O-Ring Seal  Before assembly, lubricate the bores lightly with the lubricant that is being sealed. 


Illustration 2g06016752
Section A-A

Table 2
Item  Qty  Part  Specification Description 
190-4896 Plug  Before assembly , apply blue Loctite 5188 to the threads of plug. 
Torque to 25 ± 3 N·m (221 ± 27 lb in).
207-2985 Orifice  Torque to 13 ± 2 N·m (115 ± 18 lb in)
5P-2545 O-Ring Seal  Before assembly, lubricate the bore of the O-ring seal lightly with the lubricant that is being sealed. 
12  165-2799 Spring  Length under test force is 27.0 mm (1.06 inch)
Test force is 170.6 ± 25.0 N (38.4 ± 5.6 lb).
Free length after test is 30.41 mm (1.197 inch).
192-0573 Dowel Pin  Protrusion of the dowel pin after installation is 1.88 to 2.10 mm (0.074 to 0.083 inch)


Illustration 3g06016753
Section D-D

Table 3
Item  Qty  Part  Specification Description 
8T-4136 Bolt  Torque to 44 ± 4 N·m (32 ± 3 lb ft)
10  273-8315 O-Ring Seal  Before assembly, lubricate the bores lightly with the lubricant that is being sealed. 
11  353-5837 Lip Type Seal  Before assembly, lubricate the lip of the lip type seal lightly with the lubricant that is being sealed. 
12  8T-7547 Bolt  Before assembly, apply red Loctite 263 to threads. 
13  1H-7339 O-Ring Seal  Before assembly, lubricate the bores lightly with the lubricant that is being sealed. 

Information System:

312F and 313F Excavator Machine Systems Electronic Control (Machine System)
312F and 313F Excavator Machine Systems Engine Control
300.9D VPS Mini Hydraulic Excavator Machine Systems Compression - Test
349D2 MHPU Mobile Hydraulic Power Unit Hydraulic System Oil Makeup (Swing System)
325F Excavator Machine Systems Boom - Install
New Cylinder Head Bolts are Now Used on Certain Excavators {5457, 5458}
349D2 MHPU Mobile Hydraulic Power Unit Hydraulic System Relief Valve (Swing)
325F Excavator Machine Systems Boom - Remove
C2.4 Tier 4 Final Engines for Caterpillar Built Machines Crankshaft - Install
312F and 313F Excavator Machine Systems Specifications
312F and 313F Excavator Machine Systems Gear Pump (Pilot) - Test
325F Excavator Machine Systems Boom Cylinder - Remove and Install
312F and 313F Excavator Machine System Specifications Pump Head (Main)
318F Excavator Machine Systems Final Drive
312F and 313F Excavator Machine System Specifications Boom Cylinder Lines
Inspection of the Rear of the Engine on Certain C3.3, C4.4, and C7.1 Engines {1161, 1201}
316F Excavator Machine System Specifications Fuel Tank and Mounting
320D2 GC Excavator Engine Supplement Battery - Remove and Install
320D2 GC Excavator Engine Supplement Fuel Priming Pump - Remove and Install
320D2 GC Excavator Engine Supplement Air Cleaner - Remove and Install
312F and 313F Excavator Machine Systems Relief Valve (Main) - Test and Adjust
320D2 GC Excavator Engine Supplement Water Pump - Remove and Install
318F Excavator Machine Systems Machine System
320D2 GC Excavator Engine Supplement Crankshaft Vibration Damper and Pulley - Remove and Install