PRM NEWAGE PRM 125, Workshop Manual

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19
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PRM 125
Fit drain plug (46) to the side of the gearcase (1). Fit dipstick (39) and breather (37) and sealing washers (48, 38, 45).
Finally adjust the gear selector lever (13) into the required position.
9.7.6 Cone Clutch Selection
With the selector lever (13) in neutral position manually rotate the output flange (32). The eccentricity of cone clutch (21)
groove causes an axial shift on the selector shoe (9). The variable distance between the end of the selector shoe (9)
and the output shaft (19) vertical centre line upon rotation provides MAX & MIN axial movement of the selector shoe (9).
With no further rotation of the output flange (32), screw the dog point grub screw (17) until contact is made with the
bottom of the selector shoe (9). Fit the nut (18) upto selector body (5),
not allowing any rotation of the dog point grub
screw (17). Unscrew the dog point grub screw (17) simultaneously with the nut (18) attached until a 0.60mm gap is
achieved between the nut (18) and the selector body (7). With no further movement of the dog point grub screw (17)
tighten the nut (18) against the selector body (7) to 17 Nm (13lbft). This will give 0.60mm clearance between the bottom
of the selector shoe (9) and the dog point grub screw (17) at max cone eccentricity.
CAUTION:
This condition can only be maintained with the clutch at the top dead centre. If this is not
achieved the gear selection will be affected, creating difficulty in gear engagement or disengagement.
10. SPECIAL TOOLS
Oil seal to selector housing
PR29418
Oil seal to gearcase PR29281
Oil seal to front cover PR29283
10.1 Tool Kit
Socket size
13mm
24mm
30mm
Drain Plug
1” A/F
10.2 Tightening torques
RECOMMENDED TIGHTENING TORQUES
Size Grade Type Nm
M8 8.8 Nut 24
M8 8.8 Screw 30
M16 8.8 Binx Nut 56
M20 8.8 Special Nut 205
Staked Nut Idler 1.7
11. REPLACEMENT PARTS ORDERING
When ordering replacement parts the following should be quoted:
a) Gearbox model and serial number
b) Description(s) and part number(s) of the component(s) required
c) Quantity required
d) Orders and enquiries for replacement parts must be made through PRM Newage distributor/dealer network
NOTE: Enquiries relating to a technical or service nature can be made direct to:
PRM NEWAGE LTD.
BARLOW ROAD
COVENTRY CV2 2LD
ENGLAND
TEL: +44 (0)24 7661 7141