124
SJ1044 TH, SJ1044 THS, SJ1056 TH, SJ1056 THS, SJ1256 THS
230790ABA
Section 4 – Troubleshooting Information
Hydraulic System
6.
RV3 misadjusted or defective
Adjust pressure, replace if defective
7.
Stuck or defective lift counterbalance valves CB5
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
8.
Defective carriage tilt cylinder C7
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective
9.
Defective tilt compensation cylinder C6 and/or
C13
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective
4.3-4 No Frame Level
With following conditions:
▪
No Frame Level Right
1.
Stuck or defective joystick JS1
Clean valve. Check operation of valve. Repair or
replace valve as required.
2.
4H-223-1 stuck or defective.
Clean valve. Check operation of valve. Repair or
replace valve as required.
3.
Frame right enable valve 2H-28 stuck or
defective.
Clean valve. Check operation of valve. Repair or
replace valve as required
4.
Orifice OR3 and/or OR4 plugged
Remove and inspect, clean or replace as required
5.
Stuck or defective frame level valve V4.
Clean valve. Check operation of valve. Repair or
replace valve as required.
6.
LS check valve CV10 blocked or defective
Clean valve. Check operation of valve. Repair or
replace valve as required
7.
Stuck or defective frame level counterbalance
valve CB7
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
8.
Stuck or defective frame level counterbalance
valve CB6
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
9.
Defective frame level cylinder C9
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective
With following conditions:
▪
No Frame Level Left
1.
Stuck or defective joystick JS1
Clean valve. Check operation of valve. Repair or
replace valve as required.
2.
4H-223 stuck or defective.
Clean valve. Check operation of valve. Repair or
replace valve as required.
3.
Frame right enable valve 2H-28A stuck or
defective.
Clean valve. Check operation of valve. Repair or
replace valve as required
4.
Orifice OR3 and/or OR4 plugged
Remove and inspect, clean or replace as required
Summary of Contents for SJ1044 TH
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Page 10: ...10 SJ1044 TH SJ1044 THS SJ1056 TH SJ1056 THS SJ1256 THS 230790ABA Notes...
Page 25: ...25 SJ1044 TH SJ1044 THS SJ1056 TH SJ1056 THS SJ1256 THS 230790ABA Section 2 Maintenance Tables...
Page 105: ...105 SJ1044 TH SJ1044 THS SJ1056 TH SJ1056 THS SJ1256 THS 230790ABA Notes...
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