
10
7.4.3
A 2.5mm Allen Key is used to adjust the plunger height
to a maximum. Note: screws must not be adjusted to
this height, since this may result in damage when train
wheels pass.
Prior to January 2004 the side pressure pad was not used.
Note: the adjusting screws are designed for use and adjustment
during initial installation only, the adjusting screws include an
anti-vibration feature to maintain the setting. Should further
adjustment be needed then the screw should be unwound to clear the pump body, oil / grease
contamination removed and Loctite 222 applied to the thread prior to re-fitting. New adjusting
screws can be obtained from Whitmore Rail, (see parts list LCS200-22).
7.4.4
Hand tighten the two brass coloured swivel nuts between the pump bodies with the inlet
pointing down and out. This will draw the pump bodies together.
7.4.5
Slightly loosen the two M8 bolts on each pump bracket, fit the pump unit onto the clamp
studs. Place M16 packing washers over the Rail Clamp stud and behind the pump bracket
such that the pump bracket is not strained on tightening of the fixings and that the pump
body is touching the railhead.
7.4.6
Push the pump unit down as low as possible, fit one M16 flat washer and full nut to each
stud and tighten.
7.4.7
Ensure the plunger and adjusting screw cannot contact the passing train during this time.
7.4.8
Fit the grease inlet to the pump inlet ‘T’ piece (between the two pump bodies) and tighten
the ‘T’ Piece nut ensuring that the inlet is perpendicular to the rail. This connection must
be tight to avoid future leakage; PTFE tape or Loctite 542 hydraulic thread sealant can be
applied to enhance the joint integrity.
7.4.9
Push the grease inlet down until it almost touches the
foot of the rail and tighten the two remaining ‘T’ piece
nuts. This connection must be tight to avoid future
leakage.
Alternative for Bull Head Pumps
The fitting process is the same for Bull Head pumps; the
product differences are with the pump support bracket.
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