MK -20 Series User manual

05.2013
MK-20 SERIES
OWNER’S MANUAL,
OPERATING INSTRUCTIONS
& PARTS LIST
www.mkdiamond.com
Caution: Read all safety and operating instructions
before using this equipment. This owner’s manual
MUST accompany the equipment at all times.
Revision 304
Manual Part# 156777
Gas Powered
Concrete Saw

32
MK-20 SERIES EXPLODED VIEW
FIGURE 1 - PARTS LIST: MK-2020HSP CONCRETE SAW - P/N 156498

33
MK-20 SERIES PARTS LIST
FIGURE 1 - PARTS LIST: MK-2020HSP CONCRETE SAW - P/N 156498
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1NUT, HEX, 5/16 - 18 101196 2
2BELT, BX34 150764 2
3SCREW, 3/8 - 16 X 1 -1/4 HEX HEAD CAP 150774 2
4WASHER, FLAT, SAE 3/8 150923 17
5WASHER, 1/2 SAE FLAT 150924 8
6WASHER, LOCK, SPLIT, 3/8 150925 11
7CLAMP, HOSE, 5.8 151198 4
8NUT, 1/2 - 13 HEX 151282 4
9SCREW, HEX HD, CAP, 5/16 - 18 X 3/4 151369 2
10 WASHER, 1/4 SAE FLAT 151915 12
11 NUT, 3/8 - 16 NYLOK HEX 152505 4
12 SCREW, HEX HD CAP, 3.8 -16 X 1 152507 10
13 WASHER, 1/2 SPLIT LOCK 153524 4
14 SCREW, HEX, 3/8 - 16 X 3.4 153527 1
15 SCREW, 1/2 - 13 X 1 -1/4 HEX HEAD CAP 153532 4
16 SCREW, 1/4 - 20 X 1/2 TRUSS HEAD 153880 10
17 NUT, HEX, TW, 1/4 - 20 153941 2
18 HOSE, 1/4 FUEL, 12” 154163 1
19 HOSE, 1/4 FUEL, 24” 154163 1
20 ELBOW, 1/4 MNPT STREET 154615 1
21 ELBOW, 1/8 MNPT X 1/4 BARB 90DEG 154652 1
22 BELT, AX-42 156110 1
23 GUARD, SHAFT (COMP) 156307 1
24 LIFTING BAIL 156543 1
25 BLADE, MK-799D 16 X 125 X 1 157769 1
26 NUT, HEX, NYLK, 5/16 - 18 158289 1
27 ASSY, BLD GRD 20” 158818 1
28 BELTGUARD (COMP) 159888 1
29 FITTING, PUSH ON HOSE 1/4 X 1/4 MALE 165183 1
30 ASSY, POINTER, CONC SAW 166465 1
31 CAP, 2” FUEL FILLER 167220 1
32 TANK, FUEL, 2.5 GAL 169353 1
33 ASSY, FRAME, LESS ENGINE 169719 1
34 VALVE, BALL, 1/4”M TO 1/4”F 231248 1

34
MK-20 SERIES EXPLODED VIEW & PARTS LIST
FIGURE 1 - PARTS LIST: MK-2020HSP CONCRETE SAW - P/N 156498
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1WRENCH, BOX END, 1-1/2 X 9/16 137976 1
2GRIP, HANDLE, 1/0 ID 150842 2
3WASHER, FLAT, SAE, 3/8 150923 3
4WASHER, LOCK, SPLIT, 3.8 150925 1
5SCREW, HEX HD CAP, 3/8 - 16 X 1 152507 8
6PULLEY, 1A30 X 1/2 BORE IDLER 153797 1
7SPRING, 9.16 X 2.5 EXTENSION 153807 1
8BRACKET, IDLER PULLEY 154244 1
9WELDMENT, HANDLEBAR 156516 1
10 SCREW, HEX HEAD 3.8 - 16 X 1 - 1/2 LG. 156656 2
11 COVER, 8 - 4 AWG TERMINAL, RED 169355 1
12 ASSY, ENGINE, HONDA GX630 169713 1
13 ASSY, FRAME, LESS ENGINE 169719 1

35
MK-20 SERIES EXPLODED VIEW & PARTS LIST
FIGURE 1 - PARTS LIST: MK-2020HSP CONCRETE SAW - P/N 156498
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1NUT, HEX, 1/4 -20 151893 4
2WASHER, 1/4 SAE FLAT 151915 12
3NUT, 3/8 -16 NYLOK HEX 152505 4
4SCREW, HEX HD CAP, 1/4 - 20 X 1 152676 2
5CABLE, 4GA X 48 RED BATTERY 153848 1
6CABLE, 4GA X 24 BLACK BATTERY 153849 1
7TACHOMETER/HOURMETER 153877 1
8SCREW, 1/4 -20 X 1/2 TRUSS HEAD 153880 10
9ASSY, THROTTLE CONTROL 155406 1
10 NUT, 10 -24 CLIP 155407 2
11 PANEL, TOWER LOWER BACK 156505 1
12 PLUG, HOLE PLASTIC 3/4” 156615 2
13 NUT, 3/8 - 24 HEX JAM 156623 1
14 SCREW, PAN HD SELF TAP 8 - 32 X 1/2 156632 2
15 BOX, BATTERY 156634 1

36
FIGURE 1 - PARTS LIST: MK-2020HSP CONCRETE SAW - P/N 156498
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
16 SCREW, BTN HD 3/8 16 X 3/4 SOCK 156635 2
17 SCREW, PAN HD PHIL MS 10 24 X 3/4 156641 2
18 TAG, SERIAL #, BLANK 157500-RW 1
19 DRIVE SCREW, #7 X 5/16 ROUND HEAD 157849 2
20 STRAP, NYLON, 1” 158094 1
21 CABEL, CHOKE, HONDA (COMP) 158816 1
22 BATTERY, 12V, 35AH 162589 1
23 COVER, 1” BATTERY TERMINAL, RED 163940 1
24 TAPE, VHB, 5952 (3.0”) 166487 1
25 BRACKET, SWITCH 169714 1
26 WIRING HARNESS, GX630/690 169715 1
27 ASSY, FRAME, LESS ENGINE 169719 1
28 TAG, EVAP, 20S, PARENT 169736-205 1
MK-20 SERIES EXPLODED VIEW & PARTS LIST

37
MK-20 SERIES EXPLODED VIEW
FIGURE 2 - PARTS LIST: MK-2024HSP CONCRETE SAW - P/N 158777

38
MK-20 SERIES PARTS LIST
FIGURE 2 - PARTS LIST: MK-2024HSP CONCRETE SAW - P/N 158777
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1NUT, HEX, 5/16 - 18 101196 2
2BELT, BX34 150764 2
3SCREW, 3/8 - 16 X 1 -1/4 HEX HEAD CAP 150774 2
4WASHER, FLAT, SAE 3/8 150923 17
5WASHER, 1/2 SAE FLAT 150924 8
6WASHER, LOCK, SPLIT, 3/8 150925 11
7CLAMP, HOSE, 5.8 151198 4
8NUT, 1/2 - 13 HEX 151282 4
9SCREW, HEX HD, CAP, 5/16 - 18 X 3.4 151369 2
10 WASHER, 1/4 SAE FLAT 151915 12
11 NUT, 3/8 - 16 NYLOK HEX 152505 4
12 SCREW, HEX HD CAP, 3.8 -16 X 1 152507 10
13 WASHER, 1/2 SPLIT LOCK 153524 4
14 SCREW, HEX, 3/8 - 16 X 3.4 153527 1
15 SCREW, 1/2 - 13 X 1 -1/4 HEX HEAD CAP 153532 4
16 SCREW, 1/4 - 20 X 1/2 TRUSS HEAD 153880 10
17 NUT, HEX, TW, 1/4 - 20 153941 2
18 HOSE, 1/4 FUEL, 12” 154163 1
19 HOSE, 1/4 FUEL, 24” 154163 1
20 ELBOW, 1/4 MNPT STREET 154615 1
21 ELBOW, 1/8 MNPT X 1/4 BARB 90DEG 154652 1
22 BELT, AX-42 156110 1
23 GUARD, SHAFT (COMP) 156307 1
24 LIFTING BAIL 156543 1
25 BLADE, MK-799D 16 X 125 X 1 157769 1
26 NUT, HEX, NYLK, 5/16 - 18 158289 1
27 ASSY, BLD GRD 20” 158818 1
28 BELTGUARD (COMP) 159888 1
29 FITTING, PUSH ON HOSE 1/4 X 1/4 MALE 165183 1
30 ASSY, POINTER, CONC SAW 166465 1
31 CAP, 2” FUEL FILLER 167220 1
32 TANK, FUEL, 2.5 GAL 169353 1
33 ASSY, FRAME, LESS ENGINE 169719 1
34 ASSY, ENGINE, GX690 170048 1
35 VALVE, BALL, 1/4”M TO 1/4”F 231248 1

39
MK-20 SERIES EXPLODED VIEW & PARTS LIST
FIGURE 2 - PARTS LIST: MK-2024HSP CONCRETE SAW - P/N 158777
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1WRENCH, BOX END, 1-1/2 X 9/16 137976 1
2GRIP, HANDLE, 1/0 ID 150842 2
3WASHER, FLAT, SAE, 3/8 150923 3
4WASHER, LOCK, SPLIT, 3.8 150925 1
5SCREW, HEX HD CAP, 3.8 - 16 X 1 152507 1
6PULLEY, 1A30 X 1/2 BORE IDLER 153797 1
7SPRING, 9.16 X 2.5 EXTENSION 153807 1
8BRACKET, IDLER PULLEY 154244 1
9WELDENT, HANDLEBAR 156516 1
10 SCREW, HEX HEAD 3.8 - 16 X 1 - 1/2 LG. 156656 2
11 COVER, 8 - 4 AWG TERMINAL, RED 169355 1
12 ASSY, FRAME, LESS ENGINE 169719 1
13 ASSY, ENGINE, GX690 170048 1

40
MK-20 SERIES EXPLODED VIEW & PARTS LIST
FIGURE 2 - PARTS LIST: MK-2024HSP CONCRETE SAW - P/N 158777
ITEM
NO. DESCRIPTION PART OR IDENTIFYING NO.
QTY.
REQ.
1NUT, HEX, 1/4 -20 151893 4
2WASHER, 1/4 SAE FLAT 151915 12
3NUT, 3/8 -16 NYLOK HEX 152505 4
4SCREW, HEX HD CAP, 1/4 - 20 X 1 152676 2
5CABLE, 4GA X 48 RED BATTERY 153848 1
6CABLE, 4GA X 24 BLACK BATTERY 153849 1
7TACHOMETER/HOURMETER 153877 1
8SCREW, 1/4 -20 X 1/2 TRUSS HEAD 153880 10
9ASSY, TROTTLE CONTROL 155406 1
10 NUT, 10 -24 CLIP 155407 2
11 PANEL, TOWER LOWER BACK 156505 1
12 PLUG, HOLE PLASTIC 3/4” 156615 2
13 NUT, 3/8 - 24 HEX JAM 156623 1
14 SCREW, PAN HD SELF TAP 8 - 32 X 1/2 156632 2
15 BOX, BATTERY 156634 1