BRAKES
5-9
LSPV (Load Sensing Proportioning Valve) ASSEMBLY (If equipped)
As shown below, LSPV is included within the brake circuit which connects the master cylinder and the rear wheel
brake. It controls the hydraulic pressure applied to the rear wheel brake according to the loaded state of the vehicle
(or weight of the load), whereby preventing the rear wheels from getting locked prematurely. Also, it releases the
above described control over the hydraulic pressure applied to the rear wheel brake, should any failure occur in
the hydraulic circuit of the front wheel brake so that the hydraulic pressure produced in the master cylinder is ap-
plied to the rear wheel brake directly to operate it.
CAUTION:
Never disassemble LSPV. Disassembly will spoil its original function. If faulty condition is found, re-
place it with new one.
1. LSPV spring
2. LSPV assembly
3. From master cylinder (Secondary)
4. To rear wheel brakes (Right and Left)
5. From master cylinder (Primary)
6. Loaded
7. Empty
CONSTRUCTION
The LSPV components are grounded into 3 sections as follows.
“A”:
Sensor section
The main parts in this section are a lever and a spring which senses variation in the vehicle height as affected
by the loaded condition and convert it into the load.
“B”:
Hydraulic pressure control section
Included in this section are a plunger and valve mechanism to execute proportional control.
“C”:
Fail-safe section
The main part in this section is a chamber which draws in the hydraulic pressure from the front wheel brake
system and a fail-safe piston which releases the valve mechanism in the control section connected to the
rear wheel brake, should any failure occur in the front wheel brake system.
1. Plunger
2. LSPV lever
3. Load sensing spring
4. From master cylinder
primary chamber
(Rear wheel brake)
5. To rear wheel brake
6. From master cylinder
secondary chamber
(Front wheel brake)
7. Bleeder plug
8. Collar
Never adjust
Summary of Contents for GA413
Page 1: ...99500 76A01 01E 99500 76A01 01E SERVICE MANUAL SERVISE MANUAL...
Page 40: ......
Page 43: ......
Page 267: ...SYSTEM CIRCUIT ANTILOCK BRAKE SYSTEM ABS OPTIONAL 5E 13...
Page 414: ...6E 4 ENGINE AND EMISSION CONTROL SYSTEM...
Page 424: ......
Page 426: ......
Page 427: ......
Page 428: ......
Page 441: ...ENGINE AND EMISSION CONTROL SYSTEM 6E 31 Fig for Step 2 Fig for Step 3...
Page 443: ...ENGINE AND EMISSION CONTROL SYSTEM 6E 33 Fig for Step 2 Fig for Step 3...
Page 446: ...6E 36 ENGINE AND EMISSION CONTROL SYSTEM Fig for Step 2...
Page 449: ......
Page 463: ......
Page 464: ......
Page 488: ......
Page 600: ...BLANK DIFFERENTIAL 7F 17...
Page 655: ......
Page 672: ...9 36 BODY SERVICE...
Page 674: ...9 38 BODY SERVICE...
Page 675: ...BODY SERVICE 9 39 RUST PROOF TREATMENT AREA...
Page 676: ...9 40 BODY SERVICE...
Page 753: ......
Page 895: ...ENGINE AND EMISSION CONTROL SYSTEM 6E 3 GA413 supple...
Page 896: ...6E 4 ENGINE AND EMISSION CONTROL SYSTEM GA413 supple...
Page 902: ...6E 10 ENGINE AND EMISSION CONTROL SYSTEM GA413 supple...
Page 991: ...9 4 BODY SERVICE GA413 supple...
Page 993: ...9 6 BODY SERVICE GA413 supple...
Page 994: ...BODY SERVICE 9 7 GA413 supple RUST PROOF TREATMENT AREA...
Page 995: ...9 8 BODY SERVICE GA413 supple...
Page 998: ...BODY SERVICE 9 11 GA413 supple UNDERBODY DIMENSIONS For van model...
Page 1000: ...BODY SERVICE 9 13 GA413 supple For truck model...
Page 1130: ...7E 20 DIFFERENTIAL FRONT 09944 66020 Bearing installer 09951 16060 Lower arm bush remover...
Page 1143: ...ndice MEMO Notizen Note Notas...
Page 1159: ...8A 1 12 MEMO Notizen Note Notas...
Page 1179: ...8A 3 20 Memo Notizen Note Notas...
Page 1181: ...8A 4 2 Memo Notizen Note Notas...
Page 1192: ...8A 6 5 Memo Notizen Note Notas...
Page 1198: ...8A 6 11 Memo Notizen Note Notas...
Page 1208: ...8A 6 21 Memo Notizen Note Notas...
Page 1216: ...8A 6 29 Memo Notizen Note Notas...
Page 1226: ...8A 6 39 Memo Notizen Note Notas...
Page 1237: ...8A 6 50 Memo Notizen Note Notas...
Page 1246: ...Prepared by 1st Ed July 2002 Printed in Japan 114...