Remington Ranger RM1025P Manuel De L'utilisateur page 25

REMOVING AND INSTALLING THE GUIDE BAR AND SAW
CHAIN
WARNING:
The saw chain is very sharp. Always wear
heavy-duty protective gloves when handling or performing
maintenance on the saw chain.
The guide bar and saw chain need to be removed when certain
maintenance procedures are performed, such as when rotating the
guide bar. When replacing old guide bars and saw chains with new
parts, always use the manufacturer's specified replacement parts.
Refer to Replacing the Guide Bar and Saw Chain.
Removing the Guide Bar and Saw Chain
1. Use a Phillips screwdriver to remove the four (4) screws that
hold the bar cover in place (Fig. 35).
2. Remove the bar cover.
3. Use a 7/16 inch (11 mm) wrench to slightly loosen the bar-
retaining nuts (Fig. 35). DO NOT remove the bar-retaining nuts.
4. Loosen the saw chain. Refer to Adjusting the Chain Tension.
5. Remove the saw chain from the guide bar.
6. Remove the guide bar from the guide bar bolts (Fig. 36).
Installing the Guide Bar and Saw Chain
1. Use a flat-head screwdriver to turn the chain-tensioning screw
counterclockwise (Fig. 32) until the chain-tensioning pin is at the
far left of the mounting surface (Fig. 37).
2. Align the slot in the guide bar with the guide bar bolts (Fig. 36).
Insert the guide bar between the sprocket support and mounting
surface (Fig. 36). Slide the guide bar completely onto the guide
bar bolts (Fig. 36).
3. Make sure the chain-tensioning pin is in the pin hole on the
guide bar (Fig. 37). If necessary, turn the chain-tensioning screw
to move the chain-tensioning pin.
4. Tighten the bar-retaining nuts hand tight (Fig. 35).
5. Set the saw chain on a clean, flat surface and straighten out any
kinks.
6. Loop the saw chain around the drive sprocket (Fig. 38). Make
sure the flats on the saw chain are in the grooves on the drive
sprocket. Make sure the cutters point in the correct direction of
rotation (Fig. 38).
7. Fit the saw chain into the guide bar groove (Fig. 38).
8. Place the bar cover onto the saw housing (Fig. 35). Align the
holes in the bar cover with the holes in the saw housing.
9. Insert the four (4) screws into the aligned holes. Tighten the
screws securely.
10. Make sure the saw chain is still in the guide bar groove, then
tighten the saw chain. Refer to Adjusting the Chain Tension.
11. Hold the guide bar tip up and securely tighten the bar-retaining nuts.
Screw (1)
Mounting Surface
Drive
Sprocket
25
Saw Housing
Fig. 35
Guide Bar Bolts
Bar-Retaining
Nuts
Sprocket Support
Fig. 36
Pin Hole
Chain-Tensioning Pin
Fig. 37
Cutter
Guide Bar
Groove
Direction of
Rotation
Fig. 38
Screws (3)
Bar Cover
Guide Bar
Saw
Chain
Flat