Service Manual User guide
Table Of Contents
- 10709790_B_644B,6K,844C,8K,1044C,10K_Lull_Service_Mnl
- Quick Reference
- Revision Record
- Table Of Contents
- List Of Figures
- List Of Tables
- Section 1 Safety
- Section 2 Identification & Specifications
- Section 3 General Maintenance
- Section 4 Reference Diagrams
- Section 5 Supply, Pressure & Return Hydraulics
- Section 6 Boom & Transfer
- Section 7 Frame Tilt & Oscillation
- Section 8 Transmission
- Section 9 Brakes
- Section 10 Outriggers
Supply, Pressure, and Return Hydraulics
5-66
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Table 5-1: Manifold Markings
View Marking Description
A - Left Side View
OR1 Orifice #1
SW Switch, Low Brake Pressure
AC Accumulator
P2 Port #2
B - Top View
LC Logic Valve
PF Priority Flow Valve
STP Stabilizer Pilot
PLT Pilot (From Hydraulic Pump)
PD Pilot Directional Valve
P1G Pump 1 (Gauge)
STB Stabilizer (System Pressure from Pump 1)
PU Pilot Unloading Valve
PR Pressure Reducing Valve
OR2 Orifice #2
C - Back View
BBrake
F Filter (Filtered Oil for Joysticks)
PG Pilot Gauge
ACG Accumulator Gauge
D - Right Side View
CF Controlled Flow (Steering Flow)
T Tank (Unfiltered)
LS Load Sense (From Steering Orbitrol)
EF Excess Flow
P1 Port #1
F - Front View
CV Check Valve
PSG Steering Pressure Gauge
CS Compensator Valve
ST Steering Tank