Belt Tensioner

WM 137319 Removing and installing belt tensioner





Information

Overview





Overview of belt tensioner

1 - Unit carrier
2 - Bush
3 - Dust boot
4 - Tensioning lever
5 - Tensioning roller
6 - Screw, M10 x 30
7 - Cheese head bolt, M6 x 16
8 - Deflection roller
9 - Washer
10 - Belt tensioner
11 - Screw, M10 x 55
12 - Cheese head bolt, M8 x 16
13 - Dowel sleeve
14 - Screw, M10 x 60

Preliminary work

Preliminary work
1. Disconnect battery.
2. Remove pressure pipe.
3. Remove air cleaner housing.
4. Detach and swivel out air conditioning compressor.
5. Remove oil filter console.
6. Remove generator.
7. Drain coolant.
8. Remove hydraulic pump with reservoir.

Removing belt tensioner

Removing belt tensioner

Warning
Coolant is hazardous to health.
Risk of skin irritation.

-> Wear protective gloves and goggles.
-> In the event of contact with the skin or eyes, wash immediately with plenty of water.

1. Remove unit carrier.
1.1. Remove coolant flange -5-.





Unit carrier

Unscrew M6 screw -4- on cable rail.
Unscrew M6 x 20 screws -3- and take off coolant flange.

1.2. Unscrew four M10 x 60 screws -1- and remove unit carrier -2-.
2. Remove belt tensioner.





Belt tensioner

Unscrew M6 x 16 screw -3- and two M8 x 16 screws -2- and pull belt tensioner -1- off the tensioning lever.

Installing belt tensioner

Installing belt tensioner
1. Install belt tensioner.
Slide belt tensioner -1- onto the tensioning lever. Fit and tighten two M8 screws -2- and one M6 screw -3-.
Tightening torque: 23 Nm (17 ftlb.)
Tightening torque: 10 Nm (7.5 ftlb.)





Belt tensioner

2. Install unit carrier.
2.1. Install unit carrier -2- and fit and tighten M10 x 60 screws -1-.





Unit carrier

-> Tightening torque: 65 Nm (48 ftlb.)

2.2. Install coolant flange.
Replace all sealing rings.
Fit coolant flange. Fit and tighten two M6 x 16 screws and one screw on the cable rail.
-> Tightening torque: 10 Nm (7.5 ftlb.)





Sealing rings for unit carrier

Subsequent work

Subsequent work
1. Install hydraulic pump with reservoir.
2. Fill in coolant and bleed the system.
3. Install generator.
4. Install oil-filter console.
5. Fit air conditioning compressor.
6. Install air cleaner housing.
7. Install pressure pipe.
8. Connect the battery.