General Pump MW Repair Manual - Manual (Page 52)

GENERAL PUMP
A member of the Interpump Group
MW/S 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
Crankcase cover screws M10 x 30 89 (MW32A, MWS36A, MWS40A) 33.2 45
Crankcase cover screws M10 x 30 91 (MWS45A, MWS50A, MWS55A) 33.1 45
Casing Plug, 1/2” x 13 91 (MW32A, MWS36A, MWS40A) 29.5 40
Casing Plug, 1/2” x 13 93 (MWS45A, MWS50A, MWS55A) 29.5 40
Lifting Bracket M16 x 30 Screw 51 (MW32A, MWS36A, MWS40A) 147.5 200
Lifting Bracket M16 x 30 Screw 53 (MWS45A, MWS50A, MWS55A) 147.5 200
Reducer cover screw M10x40 81 (MW32A, MWS36A, MWS40A) 33.2 45
Reducer cover screw M10x40 83 (MWS45A, MWS50A, MWS55A) 33.2 45
Ring gear stopper screw M10 x 25 76 (MW32A, MWS36A, MWS40A) 33.2 45
Ring gear stopper screw M10 x 25 78 (MWS45A, MWS50A, MWS55A) 33.2 45
Reducer case screw M10x40 81 (MW32A, MWS36A, MWS40A) 33.2 45
Reducer case screw M10x40 83 (MWS45A, MWS50A, MWS55A) 33.2 45
Upper and lower cover screw M6x14 60 (MW32A, MWS36A, MWS40A) 7.4 10
Upper and lower cover screw M6x14 62 (MWS45A, MWS50A, MWS55A) 7.4 10
Bearing cover screw m10x30 89 (MW32A, MWS36A, MWS40A) 33.2 45
Bearing cover screw m10x30 9 (MWS45A, MWS50A, MWS55A) 33.2 45
Connecting rod screw M10x1.5x80 53 (MW32A, MWS36A, MWS40A) 47.9* 65*
Connecting rod screw M10x1.5x80 55 (MWS45A, MWS50A, MWS55A) 47.9* 65*
Plunger guide screw M10x35 48 (MW32A, MWS36A, MWS40A) 44.3 60
Plunger guide screw M10x35 50 (MWS45A, MWS50A, MWS55A) 44.3 60
Plunger guide screw M10x140 30 (MW32A, MWS36A, MWS40A) 29.5 40
Plunger guide screw M10x140 18 (MWS45A, MWS50A, MWS55A) 29.5 40
Valve Cover Screw M16 x 55 (MW32A, MWS36A, MWS40A) 26 245.6 333
Valve Cover Screw M16 x 45 (MWS45A, MWS50A, MWS55A) 19 245.6 333
Head plug 1/4” (MWS45A, MWS50A, MWS55A) 4 29.5 40
Head plug 1/4”x13 14 (MW32A, MWS36A, MWS40A) 29.5 40
Head plug 1/4”x13 21 (MWS45A, MWS50A, MWS55A) 29.5 40
Head screw M16x180 28 245.6** 333**
Head screw M16x150 43 245.6** 333**
Valve opening device 2 29.5 40
* Achieve coupling torque tightening screws at the same time.
** Tightening sequence always cross-wise starting from the 4 internal screws then the 4
external screws (see fig. 131).
Insert the O-ring on the inspection covers (1, fig. 190) and assemble the covers with the use of 2+2
M6 x 14 screws (1, fig. 191).
Page 52
Calibrate the screws with a torque wrench as indicated in paragraph 3, “Screw Tightening Calibration”.
Ref 300791 Rev.C
11-12