Jacobsen LF 550, Техническое руководство по ремонту

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2-6 4241262-Rev B
SPECIFICATIONS AND GENERAL INFORMATION
2
Hydrostatic Power Train
Test Specification
Traction Pump Flow
gpm (lpm)
38.3 (145) at 3150 rpm
Forward System Relief Pressure—
Machine Serial Numbers Ending 1651 Through 2499
psi (bar)
3625 ± 10% (250 ± 10%) at 3150 rpm
Forward System Relief Pressure—
Machine Serial Numbers Ending 2500 and Up
psi (bar)
4350 ± 10% (300 ± 10%) at 3150 rpm
Reverse System Relief Pressure
psi (bar)
3625 ± 10% (250 ± 10%) at 3150 rpm
Charge Pressure
psi (bar)
315 ± 10% (22 ± 10%) at 3150 rpm
Hydrostatic Leakage Percentage Ranges 0–10% = Good
11–20% = Marginal
21% and Beyond = Bad
Repair Specification
Drive Shaft Mounting Screw Torque
lb-ft (N·m)
35–40 (47–54)
Traction Pump—Test Port Fitting Torque
lb-ft (N·m)
17 (23)
Traction Pump—Return Tube Fitting Torque
lb-ft (N·m)
80 (108)
Traction Pump—Charge Filter Tube Fitting Torque
lb-ft (N·m)
60 (81)
Traction Pump—Ports “A” and “B” Fitting Torque
lb-ft (N·m)
100 (135)
Traction Pump—System Relief Valves Torque
lb-ft (N·m)
130 (176)
Traction Pump—Charge Pressure Relief Screw
Torque
lb-ft (N·m)
80 (108)
Traction Pump—Tow Valve Torque
lb-ft (N·m)
15 (20)
Traction Pump—Front Cover Screw Torque
lb-ft (N·m)
43 (58)
Traction Pump—Cover Plate Screw Torque
lb-ft (N·m)
57 (77)
Traction Pump—Auxiliary Pad Screw Torque
lb-ft (N·m)
32 (43)
Traction Pump—Case Outlet Plug Torque
lb-ft (N·m)
85 (115)
Traction Pump—Plug Torque
lb-ft (N·m)
15 (20)
Traction Pump—Servo Piston Cover Plug Torque
lb-ft (N·m)
27 (37)
Traction Pump—Servo Piston Cover Screw Torque
lb-ft (N·m)
11 (15)
Traction Pump—Seal Nut Torque
lb-ft (N·m)
27 (37)
Traction Pump—EDC Mounting Screw Torque
lb-ft (N·m)
10 (14)
Traction Pump—Filtration Cover Screw Torque
lb-ft (N·m)
22 (30)
Traction Pump—Filtration Cover Plug Torque
lb-ft (N·m)
27 (37)
Brake Release Valve—Coil Nut Torque
lb-in. (N·m)
33–53 (4–6)
Brake Release Valve—Ports “ST” and “BR” Fitting
Torque
lb-ft (N·m)
17 (23)
Brake Release Valve—CHG and DRN Ports Fitting
Torque
lb-ft (N·m)
17 (23)
Brake Release Valve—Direction Control Valve Torque
lb-ft (N·m)
30–35 (40.7–47.5)
Brake Release Valve—Direction Control Valve Nut
Torque
lb-in. (N·m)
40–60 (4.5–6.8)
Brake Release Valve—Coil Nut Torque
lb-in. (N·m)
35–53 (4–6)
Brake Release Valve—Solenoid Valve Torque
lb-ft (N·m)
26–30 (35.3–40.7)
Brake Release Valve—Relief Valve Torque
lb-ft (N·m)
20–25 (27.1–33.9)