ROTHENBERGER PORTACUT 185 - Manual (Page 24)

5.2 Correction procedure for oblique cutting (Fig. E)
If the saw blade cuts obliquely, check for worn bea- If the saw blade cuts obliquely, check for worn bea
rings in the blade guide heads.
When the back stopper ball bearing (1) is worn:
When the back stopper ball bearing (1) is worn: pp g ( )
Remove the blade stopper bearing Remove the blade stopper bearing (2) (2), remove the adjust- , remove the adjust
ment bolt (3), and change the back stopper ball bearing. (For
bolt F and R)
When the blade stopper ball bearing (2) are worn: When the blade stopper ball bearing (2) are worn: pp g ( )
Change all the blade stopper ball bearings. (For bolt F and R) Change all the blade stopper ball bearings. (For bolt F and R)
The bearing will come off by removing the U nuts (4) under
the bearings.
If oblique cutting still persists after bearing replacement, If oblique cutting still persists after bearing replacement,
make corrections in the following procedure:
• Prepare a pipe. Prepare a pipe.
• Cut it once in an ordinary state. (Mark the pipe end faces to indicate which side is top or Cut it once in an ordinary state. (Mark the pipe end faces to indicate which side is top or
bottom.) bottom.)
• After rotating the pipe a half turns, cut it once more to a length of about 5 mm. (Mark the After rotating the pipe a half turns, cut it once more to a length of about 5 mm. (Mark the
pipe end to indicate which side is top or bottom and right or left.)
Immediately after cutting, fragments are hot. Do not touch them directly with hands! Wait for Immediately after cutting, fragments are hot. Do not touch them directly with hands! Wait for
a while or hold the pipe with a cloth. Otherwise you may get burned.
• Measure the top, bottom, right and left lengths of that butt end with a rule, yard stick or the Measure the top, bottom, right and left lengths of that butt end with a rule, yard stick or the
like. A difference between these lengths indicates an oblique cut. An oblique cut value is a half
of this difference.
• When there is a difference between top and bottom lengths, detach saw blade referring to When there is a difference between top and bottom lengths, detach saw blade referring to
5.1.1. Replacing the saw blade.
Type BSR: Type BSR: yp
• Loosen the two bolts (5) of blade guide (6) and the lock nut (7) of blade guide head, and turn Loosen the two bolts (5) of blade guide (6) and the lock nut (7) of blade guide head, and turn
the adjustment bolt clockwise or counter clockwise to adjust the angle of the blade guide
head.
When the top length is larger: Turn the adjustment bolt counter clockwise. When the top length is larger: Turn the adjustment bolt counter clockwise.
When the bottom length is larger: Turn the adjustment bolt clockwise.
When the bottom length is larger: Turn the adjustment bolt clockwise.
* A half turn of the adjustment bolt allows adjustment of about 0.8 mm (For 4“ pipe). A half turn of the adjustment bolt allows adjustment of about 0.8 mm (For 4 pipe).
Always adjust the blade guides F and R to the same value. (After adjustment, always make sure Always adjust the blade guides F and R to the same value. (After adjustment, always make sure
that the end of the adjustment bolt makes contact with the surface of the blade guide.)
* The correction procedure is also given on the inside of the front cover. The correction procedure is also given on the inside of the front cover.
Install saw blade in order of Fig. D-1 (5.1.1. Replacing the saw blade). Install saw blade in order of Fig. D 1 (5.1.1. Replacing the saw blade).
• Install saw blade referring to 5.1.1. Replacing the saw blade. Install saw blade referring to 5.1.1. Replacing the saw blade.
• Confirm the oblique cutting according to the procedure as described before. Confirm the oblique cutting according to the procedure as described before.
Type BSP: Type BSP: yp
• Loosen the bolt (1) and lock nut (2) of flat vice-R (3) and turn the adjustment bolt (4) to adjust Loosen the bolt (1) and lock nut (2) of flat vice R (3) and turn the adjustment bolt (4) to adjust
the angle of the flat vice-R.
When the blade guide head F side longer: Turn the adjustment bolt clockwise. When the blade guide head F side longer: Turn the adjustment bolt clockwise.
When the blade guide head R side longer: Turn the adjustment bolt counter clockwise.
When the blade guide head R side longer: Turn the adjustment bolt counter clockwise.
* One turn of the adjustment bolt allows adjustment of about 1 mm. One turn of the adjustment bolt allows adjustment of about 1 mm.
Measure the amount of the oblique cutting. Measure the amount of the oblique cutting.
5.3 Daily Inspection and Maintenance
• Immediately replace power plug, power cord and extension cord, if damaged. Immediately replace power plug, power cord and extension cord, if damaged.
• Check the saw blade for chipping or damage. Replace if chipping is found. (For the saw blade Check the saw blade for chipping or damage. Replace if chipping is found. (For the saw blade
replacing procedure, refer to 5.1.1. Replacing the saw blade)
• Check the blade stopper ball bearings and back stopper ball bearings. If they are not set Check the blade stopper ball bearings and back stopper ball bearings. If they are not set
correctly, cutting accuracy will decline. When the ball bearings are worn, replace them as soon
as possible. (Replace all the bearings on both sides.)
• Check for loose fitting screws of parts. If used loosened, danger can result. Retighten them. Check for loose fitting screws of parts. If used loosened, danger can result. Retighten them.
• Completely wipe off dirt and chips from the machine. Completely wipe off dirt and chips from the machine.
• Coat the machine with rust preventive grease when the machine is not used for a long period Coat the machine with rust preventive grease when the machine is not used for a long period
of time.
pper, ball pper ball Back stop
bearing
ade stopper, d t Bla
all bearing ba b ba b b
blade blade Saw b
ENGLISH 20