Kohler Command CH670 Service Manual

Specications
724 690 06 Rev. J KohlerEngines.com
ENGINE IDENTIFICATION NUMBERS
Kohler engine identication numbers (model, specication and serial) should be referenced for efcient repair,
ordering correct parts, and engine replacement.
Model .....................CH620
Command Engine
Horizontal Shaft
Numerical Designation
Specication ...............CH620-0001
Serial .....................4323500328
Year Manufactured Code Factory Code
Code Year
43 2013
44 2014
45 2015
GENERAL SPECIFICATIONS
3,6
CH18/CH20/
CH22/
CH620/CH621/
CH640/CH641
CH22/CH23/
CH620
7
/
CH640
7
/
CH670/CH680
CH25/
CH730/
CH740
CH750
Bore 77 mm
(3.03 in.)
80 mm
(3.15 in.)
83 mm (3.27 in.)
Stroke 67 mm (2.64 in.) 69 mm
(2.7 in.)
Displacement 624 cc
(38 cu. in.)
674 cc
(41 cu. in.)
725 cc
(44 cu. in.)
747 cc
(46 cu. in.)
Oil Capacity (rell) 1.6-1.8 L (1.7-1.9 U.S. qt.)
Maximum Angle of Operation (@ full oil level)
4
25°
TORQUE SPECIFICATIONS
3,5
CH18/CH20/
CH22/
CH620/CH621/
CH640/CH641
CH22/CH23/
CH620/
CH640/
CH670/CH680
CH25/
CH730/
CH740
CH750
Blower Housing and Sheet Metal
M5 Fasteners 6.2 N·m (55 in. lb.) into new holes
4.0 N·m (35 in. lb.) into used holes
M6 Fasteners 10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
Carburetor and Intake Manifold
Intake Manifold Mounting Fastener (torque in 2
increments)
rst to 7.4 N·m (66 in. lb.)
nally to 9.9 N·m (88 in. lb.)
M6 Mounting Screw 6.2-7.3 N·m (55-65 in. lb.)
Adapter (for Heavy-Duty Air Cleaner) Mounting
Fastener
7.3 N·m (65 in. lb.)
Closure Plate
Fastener 24.4 N·m (216 in. lb.)
3
Values are in Metric units. Values in parentheses are English equivalents.
4
Exceeding maximum angle of operation may cause engine damage from insufcient lubrication.
5
Lubricate threads with engine oil prior to assembly.
6
Any and all horsepower (hp) references by Kohler are Certied Power Ratings and per SAE J1940 & J1995 hp
standards. Details on Certied Power Ratings can be found at KohlerEngines.com.
7
CH620/CH640 engines changed from 624cc to 674cc; displacement can be conrmed on engine nameplate.

Kohler Command CH670 Specifications

General

Brand	Kohler
Model	Command CH670
Category	Engine
Language	English