Caterpillar cat d350 e articulated truck (prefix 9lr) service repair manual (9lr00001 and up)

Service Repair Manual
Models
D350E Articulated Truck

Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: D350E ARTICULATED TRUCK 9LR
Configuration: D350E Articulated Truck 9LR00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly
D350E & D400E ARTICULATED TRUCKS MACHINE SYSTEMS
Media Number -SENR8693-01 Publication Date -01/04/2004 Date Updated -29/01/2009
SENR86930028
Hoist Control Valve
SMCS - 5136-016; 5136-010; 5136-015
Remove & Install Hoist Control Valve
At operating temperature, the hydraulic oil tank is hot and under
pressure. Hot oil can cause burns. Remove the breather filter cap only
when the engine is stopped and the breather filter cap is cool enough to
touch. Slowly loosen the breather filter cap to release any pressure in
the hydraulic tank. Be cautious of hot hydraulic oil when any lines are
disconnected in the hydraulic system.
NOTE: Put identification on all lines, hoses, wires, and tubes for installation purposes. Cap and
plug all lines, hoses and tubes to prevent foreign material from entering the system.
1. Remove cotter pin (1), pin and washers that connect the hoist control valve to the linkage.
2. Remove four bolts (3), washers and the flange halves that hold tube assembly (2). Set tube
assembly (1) away from the hoist control valve.
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D350E Articulated Truck 9LR00001-UP (MACHINE) POWERED BY 3406 Engine(S...
2020/2/12
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3. Remove four bolts (4), washers and flange halves that hold hose assembly (5) and remove hose
assembly (5).
4. Repeat step 3 for the removal of hose assembly (7).
5. Remove hose assembly (6).
6. Remove hose assembly (8).
7. Disconnect tube assembly (11).
8. Remove four bolts (9), washers and the flange halves that hold hose assembly (12) and remove
hose assembly (12).
9. Remove four bolts (10), washers and the flange halves located on the bottom of the hoist
control valve.
10. Remove two bolts (13), washers and spacers (14) that hold the hoist control valve and remove
the hoist control valve.
NOTE: For installation of the hoist control valve, reverse the removal steps.
NOTE: Refer to the Topic" Lubricant Viscosities and Refill Capacities" in the Operation and
Maintenance Manual for the proper filling procedure and the proper levels for the hydraulic
system and the cooling system.
7. Fill the hydraulic oil tank to the correct level, refer to the Operation & Maintenance Manual.
Disassemble Hoist Control Valve
Start By:
a. remove hoist control valve
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1. Disconnect line (1) from the relief valve.
2. Remove flange (2).
3. Remove boot (3) from cover.
4. Remove bolts (4) from cover.
5. Turn the control valve body around and remove two bolts (8).
6. Remove seal retainer (5). Remove seals (6) from the valve housing.
7. Pull main control spool assembly (7) from the valve housing.
8. Remove retainer ring (9) from the cover plate.
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9. Remove cover plate (14), spring and spring retainers (18), poppet (13), detent cap (17), spring
check valve (12), cover (16), seal and spacer (11), relief valve sleeve (15) and seals and spacer
(10) from the main control valve spool (7).
10. Remove line relief valve (19) from the valve housing.
11. Poppet and spring (21) will fall out of relief valve when it is removed.
12. Remove relief valve assembly (22) from the valve housing.
13. Remove plug (20) from the valve housing.
NOTE: Inspect all O-ring seals on all relief valves and plugs.
14. Remove adjusting nut (25), jam nut (24) and plunger (23) from the body of the line relief
valve.
15. Remove circlips (26) and (30) from the relief valve.
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16. Remove plunger end (28), poppet plunger (27) and spring (29) from the relief valve.
Assemble Hoist Control Valve
1. Install spring (29), poppet plunger (27) and plunger end (28) in the relief valve.
2. Install circlips (26) and (30) on the relief valve.
3. Install plunger (23) jam nut (24) and adjusting nut (25) in the body of the line relief valve.
4. Install plug (20) in the housing.
5. Install relief valve assembly (22) in the valve housing.
6. Make sure poppet and spring (21) is installed in the relief valve assembly.
7. Install the line relief valve (19) in the valve housing.
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8. Install seals and spacer (10), relief valve sleeve (15), seal and spacer (11), cover (16), spring
check valve (12), detent cap (17), poppet (13), spring and spring retainers (18) and cover plate
(14) on the main control valve spool.
9. Install retainer ring (9) from the cover plate.
10. Install main valve spool assembly (7) in the valve housing.
11. Install bolts (4) from cover.
12. Install boot (3) from cover.
13. Install flange (2).
14. Connect line (1) to the relief valve.
End By:
6/7
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a. install hoist control valve
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All Rights Reserved.
Private Network For SIS Licensees.
Wed Feb 12 16:12:55 UTC+0800 2020
7/7
2020/2/12

Shutdown SIS
Previous Screen
SENR86930029
Hoist Cylinder
SMCS - 5102-010
Remove & Install Hoist Cylinder
NOTE: Put identification on all lines, hoses and tubes for installation purposes. Cap and plug all
lines, hoses and tubes to prevent foreign material from entering the system.
At operating temperature, the hydraulic oil tank is hot and under
pressure. Hot oil can cause burns. Remove the breather filter cap only
when the engine is stopped and the breather filter cap is cool enough to
touch. Slowly loosen the breather filter cap to release any pressure in
the hydraulic tank. Be cautious of hot hydraulic oil when any lines are
disconnected in the hydraulic system.
Cylinders equipped with lock valves can remain pressurized for very
long periods of time, even with the hoses removed.
Failure to relieve pressure before removing a lock valve or
disassembling a cylinder can result in personal injury or death.
Ensure that all pressure is relieved before removing a lock valve or
disassembling a cylinder.
1/3
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1. Disconnect two hose fittings (1) from hoist cylinder (2).
2. Remove grease nipple adapter (3) and bolt (5) from pin assembly (4).
3. Attach a sling and hoist to upper end of hoist cylinder (2). Use Tool (A) to remove pin assembly
(4).
4. Remove grease nipple adapter (7) and bolt (6) from lower pin assembly (8).
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5. Using the hoist, lower the hoist cylinder (2) and rotate out from the truck body. Position so hoist
cylinder rests on the forks of a lift truck.
6. Use Tool (A) to remove the lower pin assembly (8) from the chassis.
7. Attach a second sling to the hoist cylinder (2). Remove the hoist cylinder from the chassis. The
weight of the hoist cylinder is 221 kg (490 lb).
NOTE: For installation of the hoist cylinder, reverse the removal steps.
NOTE: Refer to the Topic" Lubricant Viscosities and Refill Capacities" in the Operation and
Maintenance Manual for the proper filling procedure and the proper levels for the hydraulic
system and the cooling system.
Wed Feb 12 16:13:51 UTC+0800 2020
3/3
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Shutdown SIS
Previous Screen
SENR86930030
Hoist Control
SMCS - 5131-010
Remove & Install Hoist Control
Start By:
a. remove ether starting aid
1. Remove pin (2).
2. Remove lever assembly (1).
3. Remove collar trim (3).
4. Remove cotter pin (6).
5. Remove pin (5).
1/2
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6. Remove lever assembly (4).
NOTE: Remove & replace two bushings if necessary.
NOTE: For installation of the hoist control, reverse the removal steps.
End By:
a. install ether starting aid
Wed Feb 12 16:14:46 UTC+0800 2020
2/2
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Shutdown SIS
Previous Screen
SENR86930031
Front Suspension Cylinder
SMCS - 7201-010
Remove & Install Front Suspension Cylinder
To prevent possible personal injury, do not disconnect any hydraulic
lines until all hydraulic pressure has been released from the system.
Start By:
a. turn disconnect switch off
b. lower front suspension
c. remove crankcase guard group
1/3
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1. Position Tool (A) with a wood block under the chassis. Raise the chassis to provide sufficient
clearance.
2. Disconnect grease line (2) at the top of front suspension cylinder (1).
3. Disconnect hydraulic line (5) at the top of the suspension cylinder (1). Cap or plug immediately.
4. Remove bolt (3) from upper suspension cylinder tapered pin (4).
5. Remove tapered pin (4). Reposition suspension cylinder (1). Place a strap through the bearing
and attach a hoist to the strap. The front suspension cylinder weighs approximately 50 kg (110 lb).
6. Disconnect grease line (6) at the bottom of front suspension cylinder (1).
7. Remove bolt (8) from lower suspension cylinder tapered pin (7).
8. Remove lower tapered pin (7).
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NOTE: Keep tension on the strap to prevent the cylinder from falling free.
9. Lower suspension cylinder (10) to the floor with the hoist.
NOTE: For installation of the front suspension cylinder, reverse the removal steps.
End By:
a. install crankcase guard group
b. turn the disconnect switch on
c. start engine pressurize hydraulic system and raise front suspension
Wed Feb 12 16:15:42 UTC+0800 2020
3/3
2020/2/12

Shutdown SIS
Previous Screen
SENR86930032
Rear Suspension Cylinder
SMCS - 7201-010; 7201-017
Remove & Install Rear Suspension Cylinder
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To prevent possible personal injury, do not disconnect any hydraulic
lines until all hydraulic pressure has been released from the system.
NOTE: Do not open the hand operated shut-off (flow control) valve which is closed during
normal operation.
1. Attach a drain hose (A) to bleed valve (1).
2. Open bleed valve (1) counterclockwise to drain the oil.
To prevent personal injury, when opening the bleed valve, turn it slowly
and with caution so the oil can drain without much force.
When draining the rear suspension cylinders the rear frame will lower.
To prevent personal injury or death stand clear of trailer when
lowering.
3. Disconnect two grease lines (2) from rear hydraulic suspension cylinder (3).
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4. Disconnect hydraulic hose (4) from suspension cylinder (3).
5. Remove two bolts (5) from suspension cylinder (3).
6. Position Tooling (B) to the rear frame. Raise the rear frame to proceed with the removal of the
suspension cylinder.
7. Attach Tooling (C). Remove the top pin.
3/7
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8. Attach Tooling (C). Remove the lower pin.
9. Attach a strap and a hoist. Remove the rear suspension cylinder. The weight of the rear
suspension cylinder is 39 kg (85 lb).
NOTE: For installation of the rear suspension cylinder, reverse the removal steps.
NOTE: Fill suspension cylinder with new oil.
Disassemble & Assemble Suspension Cylinders
Start By:
a. remove suspension cylinder
1. Remove one adapter (2) from the suspension cylinder (3). Use Tool (E) to remove retainer ring
(1) and Tool (F) to remove retainer rings (5).
2. Remove two grease fittings (6) from the suspension cylinder (3).
3. Remove the retainer (4) from the cylinder.
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4. Put the suspension cylinder (3) in an appropriate holding fixture.
5. Use Tool (A) to remove the end cap (7) from the suspension cylinder.
6. Separate rod assembly (9) from the suspension cylinder body.
7. Remove seal (8), wear ring (10) and seal (11) from the rod assembly.
8. Put rod assembly (9) in position in a suitable holding fixture.
9. Use Tool (D) to remove screw (13) from piston (12).
10. Put Tool (B) in position on piston (12) and secure it by tightening three screws in Tool (B).
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11. Put Tool (C) on Tool (B) and proceed to remove piston (12) from the rod (9).
12. Remove piston (12), valve ring (15), and cushion ring (14) from rod (9).
13. Inspect bearings (16) in the suspension cylinder body.
14. If it is necessary to replace the bearings, put the cylinder body in position in a press and use
Tool group (G) to push the bearings from the cylinder body.
NOTE: To assemble the suspension cylinder, use the reverse order of the disassemble procedure
and then follow the steps below.
15. In Step 10, tighten piston (12) to a torque of 800 N*m (590 lb ft).
16. In Step 9, tighten screw (13) to a torque of 49 N*m (36 lb ft).
17. In Step 5, tighten end cap (7) to a torque of 400 N*m (295 lb ft).
6/7
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Caterpillar cat d350 e articulated truck (prefix 9lr) service repair manual (9lr00001 and up)

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