General Pump SK Repair Manual - Manual (Page 41)

GENERAL PUMP
A member of the Interpump Group
SK SERIES
3. SCREW CALIBRATION
Screws are to be fastened exclusively using a torque wrench.
Description
Exploded View
Position
(From Owner’s Manual)
Fastening
Ft. Lbs.
Fastening
Nm
M8x20 Screw 42 18.4 25
G1/2x13 Plug, Casing 66 29.5 40
M8x30 Screw, PTO Bearing Cover 85 18.4 25
M8x20 Screw, Shaft End Cover 42 18.4 25
M10x30 Screw, Bearing Support Cover 57 33 45
M6x14 Screw, Upper and Lower Covers 70 7.4 10
M8x20 Screw, Bearing Cover 42 18.4 25
M12x1.25x87 Screw, Connecting Rod Tightening 40 55.3 75
M10x35 Screw, Piston Head 38 44.3 60
M12x25 Screw, Bushing Locking Flange 51 50.5 68.5
Complete Plunger 16 37 50
Choke Fitting, D.3, 3/8M-3/8F 72 33 45
M8x50 Screw, Supports 26 29.5* 40*
M16x280 Screw, Head 14 245.6** 333**
M10x140 Screw, Liners 13 61.2*** 83***
The screws in positions 13, 14 and 26 must be tightened with a torque wrench and the
Threaded shaft must be lubricated with molybdenum bisulphide grease, part #F12001500
* Screws for affixing supports must be tightened following the phases and order shown in the
scheme in fig. 144
** Screws for affixing the head must be tightened following the phases and order shown in the
scheme in fig. 145
*** Screws for affixing liners must be tightened following the phases and order shown in the scheme
in fig. 145
Assemble the support/liner assembly, manually tightening the M8 x 50 screws as shown in fig. 143, and
then proceeding with setting the torque wrench as shown in Section 3.
Page 41