DAMPING FORCE CONTROL ACTUATOR (for Front Side) INSTALLATION

Tech Tips

Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
A bolt without a torque specification is shown in the standard bolt chart Click here.

INSTALL FRONT SUSPENSION CONTROL VALVE ASSEMBLY LH
1. Install the control valve to the vehicle with the 3 bolts.
  
  Torque:
  
  31 N*m { 316 kgf*cm, 23 ft.*lbf }
2. Connect the control valve connector.
3. Apply a small amount of suspension fluid to a new O-ring and new back-up ring and install then to the accumulator.
4. Install the accumulator to the control valve.
  
  Torque:
  
  150 N*m { 1530 kgf*cm, 111 ft.*lbf }
INSTALL FRONT SHOCK ABSORBER CONTROL VALVE ASSEMBLY LH
1. Install the bleeder plug and bleeder plug cap to the control accumulator.
  
  Torque:
  
  8.3 N*m { 85 kgf*cm, 73 in.*lbf }
2. Install the control valve to the vehicle with the 3 bolts.
  
  Torque:
  
  31 N*m { 316 kgf*cm, 23 ft.*lbf }
3. Connect the connector.
INSTALL FRONT NO. 2 SUSPENSION CONTROL ACCUMULATOR ASSEMBLY LH
1. Apply a small amount of suspension fluid to a new O-ring and install it to the accumulator.
2. Install the accumulator to the shock absorber control valve.
  
  Torque:
  
  57 N*m { 581 kgf*cm, 42 ft.*lbf }
CONNECT NO. 2 SUSPENSION CONTROL PRESSURE HOSE
1. Install a new gasket to the No. 2 suspension control pressure hose, then connect the pressure hose to the control valve with the union bolt.
  
  Torque:
  
  50 N*m { 510 kgf*cm, 37 ft.*lbf }
INSTALL NO. 2 HEIGHT CONTROL TUBE LH
1. Using a union nut wrench, connect the No. 2 control tube to the No. 3 height control tube, shock absorber control valve and control valve.
  
  Torque:
  
  without union nut wrench
  
  44 N*m { 450 kgf*cm, 33 ft.*lbf }
  
  with union nut wrench
  
  40 N*m { 408 kgf*cm, 30 ft.*lbf }
  Tech Tips
  - Use a torque wrench with a fulcrum length of 300 mm (11.8 in.).
  - The torque value for use with a union nut wrench is effective when the union nut wrench is parallel to the torque wrench.
2. Install the No. 2 control tube with the bolt.
  
  Torque:
  
  31 N*m { 316 kgf*cm, 23 ft.*lbf }
INSTALL FRONT NO. 1 SUSPENSION CONTROL ACCUMULATOR ASSEMBLY LH
1. Install the No. 1 suspension control accumulator to the frame with the 2 bolts.
  
  Torque:
  
  31 N*m { 316 kgf*cm, 23 ft.*lbf }
INSTALL NO. 1 HEIGHT CONTROL TUBE LH
1. Install a new gasket to the No. 1 height control tube, then temporarily install No. 1 height control tube to the control valve and control accumulator with the union bolt and union nut.
2. Using a union nut wrench, tighten the No. 1 height control tube.
  
  Torque:
  
  without union nut wrench
  
  44 N*m { 450 kgf*cm, 33 ft.*lbf }
  
  with union nut wrench
  
  40 N*m { 408 kgf*cm, 30 ft.*lbf }
  Tech Tips
  
  Use a torque wrench with a fulcrum length of 300 mm (11.8 in.).
  
  The torque value for use with a union nut wrench is effective when the union nut wrench is parallel to the torque wrench.
3. Tighten the union bolt.
  
  Torque:
  
  43 N*m { 438 kgf*cm, 32 ft.*lbf }
BLEED AIR FROM SUSPENSION FLUID
1. With the engine stopped, fill the reservoir tank with fluid.
  
  Note
  
  When the engine starts, the pump operates and fluid is supplied to each cylinder from the reservoir tank. Therefore, add the necessary amount of fluid so that the reservoir tank does not become empty.
  
  Tech Tips
  
  At this point, the vehicle height is low because the pressure of the cylinders is low.
2. With the vehicle on a level surface, start the engine and set the vehicle height to NORMAL with the suspension control switch.
3. When the vehicle height becomes NORMAL and the pump stops, stop the engine.
4. Connect a hose to the bleeder plug of the front left side or right side control valve, then loosen the bleeder plug.
  
  CAUTION:
  
  Be careful when loosening the control valve bleeder plug because the front vehicle height drops rapidly.
5. After the fluid containing air stops coming out, retighten the bleeder plug.
  
  Torque:
  
  8.3 N*m { 85 kgf*cm, 73 in.*lbf }
  
  Tech Tips
  
  If the procedures are performed for the first time on the left side, perform the procedures on the right side for the second time.
6. Connect a hose to the bleeder plug of the rear left side or right side control valve, then loosen the bleeder plug.
  
  CAUTION:
  
  Be careful when loosening the control valve bleeder plug because the rear vehicle height drops rapidly.
7. After the fluid containing air stops coming out, retighten the bleeder plug.
  
  Torque:
  
  8.3 N*m { 85 kgf*cm, 73 in.*lbf }
  
  Tech Tips
  
  If the procedures are performed for the first time on the left side, perform the procedures on the right side for the second time.
8. Repeat the previous 4 procedures until the fluid containing air stop coming out.
CHECK FLUID LEVEL IN RESERVOIR
1. With the vehicle empty, after setting the vehicle height to NORMAL from LO, check the indicator to make sure the vehicle height is NORMAL and check that the fluid level in the reservoir tank is within the specified range (MAX, MIN).
  
  Tech Tips
  
  After changing the vehicle height from LO to NORMAL, do not stop the engine for 25 seconds because the pressure control for the main accumulator is operating. After that, check the fluid level.
INSPECT FOR SUSPENSION FLUID LEAK
1. Check that the union nuts shown in the illustration are tightened to the specified torque.
  
  Torque:
  
  without union nut wrench
  
  15 N*m { 155 kgf*cm, 11 ft.*lbf }
  
  with union nut wrench
  
  14 N*m { 143 kgf*cm, 10 ft.*lbf }
  Tech Tips
  - Use a torque wrench with a fulcrum length of 300 mm (11.8 in.).
  - The torque value for use with a union nut wrench is effective when the union nut wrench is parallel to the torque wrench.
2. Check for fluid leakage from the parts and connections.
  
  Tech Tips
  
  For union nuts and union bolts not shown in the illustration, refer to the installation procedures for each title.
INSTALL HEIGHT CONTROL CYLINDER BRACKET ASSEMBLY
1. Install the 3 brackets with the 6 bolts.
  
  Torque:
  
  31 N*m { 316 kgf*cm, 23 ft.*lbf }
INSTALL HEIGHT CONTROL PROTECTOR PIPE
1. Install the protector pipe with the 6 bolts.
  
  Torque:
  
  16 N*m { 163 kgf*cm, 12 ft.*lbf }
INSTALL SIDE STEP ASSEMBLY LH
1. Install the side step with the 6 bolts.
  
  Torque:
  
  30 N*m { 306 kgf*cm, 22 ft.*lbf }