Instruction manual
Irregular Mitres:
Irregular mitre cuts are almost always caused by out-of square material. Check your material with a 90° square
and a straight edge. Material that has a high spot on the bottom will move, or roll forward as it is being cut
(even with pneumatic hold down clamps), thereby causing the blade to cut more on the inside of the moulding
than the outside. Another cause of irregular mitre cuts is to thin a blade plate thickness. Blade plate thickness
should be .120 to .130 on 16” blades and .150 to .160 on 20” blades. Blades will find the easiest avenue to cut
through material, and sometimes the blade plate will distort when cutting heavier sections. The drawing is an
example of a cut when blade plate is too thin for the material being cut.
Other Repairs:
See specific areas within the manual for additional information on repairs and maintenance.
Pivot Shaft Assembly for 400 Series:
The Pivot Shaft Assembly is engineered
to practically eliminate any maintenance
during the life of the machine. The diagram
of the assembly is for reference only.
4B2P23 Preload
Spring (2 required)
4B2P21B Outside
Bearing Closure
(2 required)
4B2P26 Pivot Spacer Washer
(1 required)
4BM20 Pivot Shaft
4B2P22 Snap Ring
(2 required)
4B2P24 & 4B2P25
Bearing Assembly
& Bearing Cup
(2 required)
400X SPINDLE ASSEMBLY
No. Description Part No.
1 Spindle 4BM41X
2 Flange 4BM43
3 Slinger 4BM44
4 Bearing (2 required)** 4B2P45
5 Preload Spring (4 required) 4B2P46
6 Snap Ring (2 required) 4B2P47
7 Nut, Blade—Left thread 4B1P48
8 Nut, Jam—Right thread 4B1P49X
9 Spacer 4BM50X
9A Spacer (for 15 HP) 4BM51X
10 Bearing, Double Row 4B2P45C
(for 15 HP only)
11 Spindle B4P2AK30
12 Bushing, Pulley B4PP118
13 Key, Pulley 4BM23A
14 4B4P3V580BELT 12F40
** Use two #4 bearings are for 7.5 H.P and 10 H.P.
motors. Use one #4 and one #10 bearing for
15 H.P. motor.
Part No. 4BM40X Spindle Assembly consists of the following parts assembled together with the face of the
slinger ground:
A. Spindle, No.1 Note: Items 1-4 are assembled, items 5, 6, 7, 8, 9 & 13 are included
B. Bearings, No. 4 (2 each)** Spindle Assembly, but are shipped loose.
C. Slinger, No. 3
D. Flange, No. 2
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