AP26.60-W-2685A | Hydraulic gearshift system - replace brake fluid | 25.11.09 |
TRANSMISSION 712.63 in MODEL 950.5, 952.5, 954.5
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.060 in MODEL 950.5 /6, 952.5, 954.5
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.320 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.500 in MODEL 930, 932, 933, 934, 940, 942, 943, 950, 952, 953, 954
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.507 in MODEL 930, 932, 934
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.510 in MODEL 375.4, 930, 934, 940, 944, 950, 952, 953, 954
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.513 in MODEL 930, 934, 950, 954
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.520 in MODEL 375.4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
TRANSMISSION 715.540 in MODEL 930, 932, 934, 950, 952, 954
with CODE (GS3) "Hydraulic" gearshift
except CODE (IY2) Hydraulic fluid as per sheet 345.0
W26.60-1002-08
Transmission 712.63, 715.060
Transmission 715.5
Transmission 715.320
W26.60-1003-01
W26.60-1004-01
Modification notes
17.11.09 | Gotis reference to brake fluid changer and assembly support added | Operation step 4, 5, 10, 15 |
Clean vent nipple | |||
Danger! | Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes. | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
| Brake fluid notes | ||
1 | Open bleed screw (1) and operate gearshift lever in gear direction 3 times | Connect hose to vent nipple (2) and route into a receptacle. | |
With this process any contaminants on the vent nipple (2) are flushed away outwards. This precludes damage to the inner sealing elements in the hydraulic system. | |||
2 | Open bleed screw (3) and operate gearshift lever in gate direction 3 times | Connect hose to vent nipple (4) and route into a collecting vessel. With this process any contaminants on the vent nipple (4) are flushed away outwards. This precludes damage to the inner sealing elements in the hydraulic system. | |
3 | Place transmission in neutral | The transmission should remain in neutral for the entire duration of the bleeding operation. | |
4 | Connect transparent bleeder hose from brake fluid change/bleeder unit to vent (9) behind front flap. | For bleeding purposes, a bleeder unit with a head pressure of min. 2.5 bar to max. 3.0 bar is required. The flow rate must be 20 to 30 l/h on the vehicle (this corresponds to approx. 1 l in 2 to 3 min.). If an incorrect bleeder unit is used faults in the hydraulic system or damage to the expansion reservoir (8) can occur. | |
Brake fluid change unit gotis://B_42/43.2_01.1 | |||
Replace brake fluid in gear hydraulic circuit. | |||
5 | Connect brake fluid changing and bleeding device to the bleed fitting (2) on the 6th gear shift cylinder and switch it on. | Observe operating instructions from equipment manufacturer. | |
Brake fluid change unit gotis://B_42/43.2_01.1 | |||
6 | Open the bleed screw (1) and vent nipple (2) of the gear shift cylinder (6) one revolution | ||
7 | Slowly move the gearshift lever in the 3rd/4th gear gate up to the mechanical stop several times (at least 8-times) slowly forwards and backwards | Flush the hydraulic circuit until new brake fluid escapes free of bubbles. | |
8 | Place shift lever in neutral | ||
9 | Close the bleed screw (1) and vent nipple (2) of the shift cylinder Gang (6) and switch off the brake fluid change/bleeder unit | | |
Replace brake fluid in gate hydraulic circuit. | |||
10 | Connect brake fluid changing and bleeding device to the bleed fitting (4) on the gate shift cylinder (7) and switch it on. | Brake fluid change unit gotis://B_42/43.2_01.1 | |
11 | Open bleed screw (3) and bleed fitting (4) on gate shift cylinder (7) by one turn | ||
12 | Move the gearshift lever slowly in neutral (min. 8-times) from right to left up to the mechanical stop | Flush the hydraulic circuit until new brake fluid escapes free of bubbles. | |
13 | Place shift lever in neutral | ||
14 | Close bleed screw (3) and bleed fitting (4) on gate shift cylinder (7) and switch off the brake fluid changing and bleeding device. | | |
Danger! | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut. | |
15 | Tilt and lock cab | Assembly support gotis://G_68-80_04.0 | |
| Notes on tilting the cab | ||
16 | Correct brake fluid level in expansion reservoir (8) (arrow) | ||
Danger! | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut. | |
17 | Tilt cab back into driving position | ||
| Notes on tilting the cab | ||
18 | Disconnect the transparent bleed hose from the brake fluid change/bleeder unit at the bleeding system (9) behind the front flap | ||
19 | Shift through gears several times | Gears: Move the gearshift lever in quick succession backwards and forwards a minimum of 10 times. Gate: Move the shift lever to the left and right at least 10 times. This allows the shift mechanism to center itself. If the shift lever travel is still imprecise (travel detents too soft) then the shift mechanism must be bled again. | |
20 | Inspect hydraulic system for leaks |
Shift mechanism
Number | Designation | Transmission 712.63, | Transmission | ||
BA26.60-N-1014-01D | Bleeder valve on shift cylinder | Nm | 8 | 8 | |
Shift mechanism